diff --git a/.gitignore b/.gitignore
index 2608ec2..586658d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
 .DS_Store
-.vscode
\ No newline at end of file
+.vscode
+.fake
\ No newline at end of file
diff --git a/task_1_4_1/.gitattributes b/task_1_4_1/.gitattributes
new file mode 100644
index 0000000..097f9f9
--- /dev/null
+++ b/task_1_4_1/.gitattributes
@@ -0,0 +1,9 @@
+#
+# https://help.github.com/articles/dealing-with-line-endings/
+#
+# Linux start script should use lf
+/gradlew        text eol=lf
+
+# These are Windows script files and should use crlf
+*.bat           text eol=crlf
+
diff --git a/task_1_4_1/.gitignore b/task_1_4_1/.gitignore
new file mode 100644
index 0000000..01d6c0f
--- /dev/null
+++ b/task_1_4_1/.gitignore
@@ -0,0 +1,7 @@
+# Ignore Gradle project-specific cache directory
+.gradle
+
+# Ignore Gradle build output directory
+build
+
+bin
\ No newline at end of file
diff --git a/task_1_4_1/app/build.gradle b/task_1_4_1/app/build.gradle
new file mode 100644
index 0000000..ab36713
--- /dev/null
+++ b/task_1_4_1/app/build.gradle
@@ -0,0 +1,50 @@
+/*
+ * This file was generated by the Gradle 'init' task.
+ *
+ * This generated file contains a sample Java application project to get you started.
+ * For more details on building Java & JVM projects, please refer to https://docs.gradle.org/8.4/userguide/building_java_projects.html in the Gradle documentation.
+ */
+
+plugins {
+    // Apply the application plugin to add support for building a CLI application in Java.
+    id 'application'
+    id 'jacoco'
+}
+
+repositories {
+    // Use Maven Central for resolving dependencies.
+    mavenCentral()
+}
+
+dependencies {
+    // Use JUnit Jupiter for testing.
+    testImplementation 'org.junit.jupiter:junit-jupiter:5.9.3'
+
+    testRuntimeOnly 'org.junit.platform:junit-platform-launcher'
+
+    // This dependency is used by the application.
+    implementation 'com.google.guava:guava:32.1.1-jre'
+}
+
+// Apply a specific Java toolchain to ease working on different environments.
+java {
+    toolchain {
+        languageVersion = JavaLanguageVersion.of(20)
+    }
+}
+
+application {
+    // Define the main class for the application.
+    mainClass = 'task.StudentBook'
+}
+
+tasks.named('test') {
+    // Use JUnit Platform for unit tests.
+    useJUnitPlatform()
+}
+
+jacocoTestReport {
+    reports {
+        xml.required = true
+    }
+}
\ No newline at end of file
diff --git a/task_1_4_1/app/src/main/java/task/ExcludeFromJacocoGeneratedReport.java b/task_1_4_1/app/src/main/java/task/ExcludeFromJacocoGeneratedReport.java
new file mode 100644
index 0000000..48f2689
--- /dev/null
+++ b/task_1_4_1/app/src/main/java/task/ExcludeFromJacocoGeneratedReport.java
@@ -0,0 +1,14 @@
+package task;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+/**
+ * Excluding From Jacoco Test Report interface.
+ */
+@Retention(RetentionPolicy.RUNTIME)
+@Target(ElementType.METHOD)
+public @interface ExcludeFromJacocoGeneratedReport {
+}
diff --git a/task_1_4_1/app/src/main/java/task/Grade.java b/task_1_4_1/app/src/main/java/task/Grade.java
new file mode 100644
index 0000000..52f6ad6
--- /dev/null
+++ b/task_1_4_1/app/src/main/java/task/Grade.java
@@ -0,0 +1,143 @@
+package task;
+
+/**
+ * Class represents subject grade in gradebook.
+ */
+public class Grade {
+
+    /**
+     * Name of subject.
+     */
+    private String subject;
+
+    /**
+     * Grade for this subject.
+     */
+    private int mark;
+
+    /**
+     * Boolean variable. True if mark is differentiated, false otherwise.
+     */
+    private boolean differentiated;
+
+    /**
+     * Constructor of Grade class.
+     *
+     * @param subject        name of the subject.
+     * @param mark           grade for this subject.
+     * @param differentiated boolean variable. True if mark is differentiated, false otherwise.
+     * @throws GradeException special exception for GradeBook class. Contains information message.
+     */
+    public Grade(String subject, int mark, boolean differentiated) throws GradeException {
+        this.subject = subject;
+        this.differentiated = differentiated;
+        this.setMark(mark);
+    }
+
+    /**
+     * Getter for mark.
+     *
+     * @return mark for subject.
+     */
+    public int getMark() {
+        return mark;
+    }
+
+    /**
+     * Setter for mark.
+     *
+     * @param mark mark.
+     * @throws GradeException special exception for GradeBook class. Contains information message.
+     */
+    public void setMark(int mark) throws GradeException {
+        if (mark < 2 || mark > 5) {
+            throw new GradeException("Mark must be between 2 and 5.\n");
+        }
+        if (differentiated) {
+            this.mark = mark;
+        } else {
+            this.mark = mark > 2 ? 5 : 2;
+        }
+    }
+
+    /**
+     * Getter for subject.
+     *
+     * @return name of the subject.
+     */
+    public String getSubject() {
+        return subject;
+    }
+
+    /**
+     * Setter for subject.
+     *
+     * @param subject name of the subject.
+     */
+    public void setSubject(String subject) {
+        this.subject = subject;
+    }
+
+    /**
+     * Getter for differentiated.
+     *
+     * @return true if mark is differentiated, false otherwise.
+     */
+    public boolean isDifferentiated() {
+        return differentiated;
+    }
+
+    /**
+     * Setter for differentiated.
+     *
+     * @param differentiated boolean variable. True if mark is differentiated, false otherwise.
+     */
+    public void setDifferentiated(boolean differentiated) {
+        this.differentiated = differentiated;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public int hashCode() {
+        final int prime = 31;
+        int result = 1;
+        result = prime * result + ((subject == null) ? 0 : subject.hashCode());
+        result = prime * result + mark;
+        result = prime * result + (differentiated ? 1231 : 1237);
+        return result;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @ExcludeFromJacocoGeneratedReport
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj) {
+            return true;
+        }
+        if (obj == null) {
+            return false;
+        }
+        if (getClass() != obj.getClass()) {
+            return false;
+        }
+        Grade other = (Grade) obj;
+        if (subject == null) {
+            if (other.subject != null) {
+                return false;
+            }
+        } else if (!subject.equals(other.subject)) {
+            return false;
+        }
+        if (mark != other.mark) {
+            return false;
+        }
+        if (differentiated != other.differentiated) {
+            return false;
+        }
+        return true;
+    }
+}
diff --git a/task_1_4_1/app/src/main/java/task/GradeBook.java b/task_1_4_1/app/src/main/java/task/GradeBook.java
new file mode 100644
index 0000000..b527b1f
--- /dev/null
+++ b/task_1_4_1/app/src/main/java/task/GradeBook.java
@@ -0,0 +1,226 @@
+package task;
+
+import java.util.Arrays;
+import java.util.HashSet;
+import java.util.Set;
+
+/**
+ * Represents an electronic student grade book with methods for managing and analyzing grades.
+ */
+public class GradeBook {
+    /**
+     * Array of marks pages.
+     */
+    private MarksPage[] pages;
+
+    /**
+     * Count of pages (semesters) in gradebook.
+     */
+    private int pageCount;
+
+    /**
+     * Student name in format: last name, first name, patronymic.
+     */
+    private String studentName;
+
+    /**
+     * Class constructor.
+     *
+     * @param studentName name in the format: first name, last name, patronymic.
+     * @param pageCount   count of pages in Grade Book.
+     * @throws GradeException special exception for GradeBook class. Contains information message.
+     */
+    public GradeBook(String studentName, int pageCount) throws GradeException {
+        pages = new MarksPage[pageCount];
+        for (int i = 0; i < pageCount; i++) {
+            pages[i] = new MarksPage();
+        }
+        this.pageCount = pageCount;
+        this.setStudentName(studentName);
+    }
+
+    /**
+     * Getter for student name.
+     *
+     * @return full student name.
+     */
+    public String getStudentName() {
+        return studentName;
+    }
+
+    /**
+     * Setter for student name.
+     *
+     * @param studentName a name that will be checked to match the format.
+     * @throws GradeException special exception for GradeBook class. Contains information message.
+     */
+    public void setStudentName(String studentName) throws GradeException {
+        String[] nameParts = studentName.split(" ");
+        if (nameParts.length != 3) {
+            throw new GradeException("\"" + studentName + "\"" 
+                                    + " is not supported in this record book.\n" 
+                                    + "Please, Make sure your name is in the format:\n" 
+                                    + "last name, first name, patronymic (\"-\" if absent).\n");
+        } 
+        if (studentName.matches(".*\\d.*")) {
+            throw new GradeException("\"" + studentName + "\"" + " contains numbers. Fix this.\n");
+        }
+        this.studentName = studentName;
+    }
+    
+    /**
+     * Adds a new grade entry to the GradeBook for a specific semester.
+     *
+     * @param currentSemester number of page (semester) in GradeBook.
+     * @param subject         name of the subject.
+     * @param mark            grade for this subject.
+     * @param differentiated  boolean variable. True if mark is differentiated, false otherwise.
+     * @throws GradeException special exception for GradeBook class. Contains information message.
+     */
+    public void writeInGradeBook(int currentSemester, 
+                                String subject,
+                                int mark,
+                                boolean differentiated) throws GradeException {
+        if (currentSemester < 1 || currentSemester > pageCount) {
+            throw new GradeException("Semester must be between 1 and " + pageCount);
+        }
+        pages[currentSemester - 1].addNote(subject, mark, differentiated);
+    }
+
+    /**
+     * Removes a note from the gradebook for a specific semester.
+     *
+     * @param currentSemester number of page (semester) in GradeBook.
+     * @param subject         name of the subject to remove.
+     */
+    public void removeFromGradeBook(int currentSemester, String subject) {
+        var currSemGrades = pages[currentSemester - 1].getNotes();
+        for (var i : currSemGrades) {
+            if (i.getSubject() == subject) {
+                currSemGrades.remove(i);
+                return;
+            }
+        }
+    }
+
+    /**
+     * Checks if the student is eligible for an increased scholarship in a specific semester.
+     *
+     * @param semester number of page (semester) in GradeBook.
+     * @return true if eligible, false otherwise.
+     */
+    public boolean scholarship(int semester) {
+        return pages[semester - 1].getNotes().stream().allMatch(x -> x.getMark() == 5);
+    } 
+
+    /**
+     * Checks if the student is eligible for a red diploma based on their entire academic history.
+     *
+     * @return true if eligible, false otherwise.
+     */
+    public boolean redDiploma() {
+        Set<String> visited = new HashSet<>();
+        int[] goodMarks = {0};
+        int[] countMarks = {0};
+        boolean[] diplomWritten = {false};
+
+        Arrays.stream(pages)
+            .flatMap(curr -> curr.getNotes().stream())
+            .filter(i -> !visited.contains(i.getSubject()))
+            .peek(i -> visited.add(i.getSubject()))
+            .allMatch(j -> {
+                if (j.getMark() <= 3) {
+                    return false;
+                }
+                if ("Diploma".equals(j.getSubject())) {
+                    diplomWritten[0] = true;
+                    return j.getMark() == 5;
+                }
+                if (j.getMark() == 5) {
+                    goodMarks[0]++;
+                }
+                countMarks[0]++;
+                return true;
+            });
+
+        return diplomWritten[0] && ((float) goodMarks[0] / countMarks[0] >= 0.75);
+    }
+
+    /**
+     * Calculates the average grade for all semesters.
+     *
+     * @return float number of average grade.
+     */
+    public float averageMark() {
+        float[] total = {0f};
+        long countMarks = Arrays.stream(pages)
+            .flatMap(curr -> curr.getNotes().stream())
+            .peek(j -> {
+                total[0] += (float) j.getMark();
+            }).count();
+        return total[0] / (float) countMarks;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public int hashCode() {
+        final int prime = 31;
+        int result = 1;
+        for (var i : pages) {
+            result += i.hashCode();
+        }
+        result = prime * result + pageCount;
+        result = prime * result + ((studentName == null) ? 0 : studentName.hashCode());
+        return result;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    @ExcludeFromJacocoGeneratedReport
+    public boolean equals(Object obj) {
+        if (this == obj) {
+            return true;
+        }
+        if (obj == null) {
+            return false;
+        }
+        if (getClass() != obj.getClass()) {
+            return false;
+        }
+        GradeBook other = (GradeBook) obj;
+        if (pageCount != other.pageCount) {
+            return false;
+        }
+        if (studentName == null) {
+            if (other.studentName != null) {
+                return false;
+            }
+        } else if (!studentName.equals(other.studentName)) {
+            return false;
+        }
+        Set<MarksPage> thisSet = new HashSet<>(Arrays.asList(pages));
+        Set<MarksPage> otherSet = new HashSet<>(Arrays.asList(other.pages));
+        return thisSet.equals(otherSet);
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    @ExcludeFromJacocoGeneratedReport
+    public String toString() {
+        StringBuilder res = new StringBuilder();
+        for (int i = 0; i < pageCount; i++) {
+            var currPage = pages[i];
+            res.append("Semester number " + (i + 1) + "\n");
+            for (var j : currPage.getNotes()) {
+                res.append("    " + j.getSubject() + " " + j.getMark() + "\n");
+            }
+        }
+        return res.toString();
+    }
+}
diff --git a/task_1_4_1/app/src/main/java/task/GradeException.java b/task_1_4_1/app/src/main/java/task/GradeException.java
new file mode 100644
index 0000000..72b7dc2
--- /dev/null
+++ b/task_1_4_1/app/src/main/java/task/GradeException.java
@@ -0,0 +1,15 @@
+package task;
+
+/**
+ * Custom exception class for handling exceptions in the GradeBook system.
+ */
+public class GradeException extends Exception {
+    /**
+     * Constructs a GradeException with the specified error message.
+     *
+     * @param message The detail message.
+     */
+    public GradeException(String message) {
+        super(message);
+    }
+}
diff --git a/task_1_4_1/app/src/main/java/task/Main.java b/task_1_4_1/app/src/main/java/task/Main.java
new file mode 100644
index 0000000..6d1520f
--- /dev/null
+++ b/task_1_4_1/app/src/main/java/task/Main.java
@@ -0,0 +1,29 @@
+package task;
+
+/**
+ * Main class to demonstrate the functionality of the GradeBook system.
+ */
+public class Main {
+    /**
+     * Main method to run the GradeBook demonstration.
+     *
+     * @param args Command line arguments (not used in this context).
+     */
+    @ExcludeFromJacocoGeneratedReport
+    public static void main(String[] args) {
+        try {
+            GradeBook newBook = new GradeBook("Petrov Petr Petrovich", 1);
+            newBook.writeInGradeBook(1, "Math", 5, true);
+            newBook.writeInGradeBook(1, "Rus", 4, true);
+            newBook.writeInGradeBook(1, "Diploma", 5, true);
+            System.out.println(newBook.toString());
+            System.out.println("Average Mark: " + newBook.averageMark());
+            System.out.println("Red Diploma Eligibility: " + newBook.redDiploma());
+            System.out.println("Scholarship Eligibility for Semester 1: " + newBook.scholarship(1));
+
+        } catch (Exception e) {
+            var message = e.getMessage();
+            System.out.println(message);
+        }
+    }
+}
diff --git a/task_1_4_1/app/src/main/java/task/MarksPage.java b/task_1_4_1/app/src/main/java/task/MarksPage.java
new file mode 100644
index 0000000..4a94aee
--- /dev/null
+++ b/task_1_4_1/app/src/main/java/task/MarksPage.java
@@ -0,0 +1,93 @@
+package task;
+
+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.Set;
+
+/**
+ * Represents a page in the gradebook containing subject grades. 
+ * Provides methods to add and retrieve grades.
+ */
+public class MarksPage {
+    /**
+     * A list of subject grades.
+     */
+    private ArrayList<Grade> notes;
+
+    /**
+     * Constructs a MarksPage object with an empty list of grades.
+     */
+    public MarksPage() {
+        notes = new ArrayList<>();
+    }
+
+    /**
+     * Adds a new grade entry to the gradebook.
+     *
+     * @param subject         The name of the subject.
+     * @param mark            The grade for this subject.
+     * @param differentiated  True if the grading is differentiated, false otherwise.
+     * @throws GradeException Special exception for the GradeBook class containing a message.
+     */
+    public void addNote(String subject, int mark, boolean differentiated) throws GradeException {
+        Grade newNote = new Grade(subject, mark, differentiated);
+        notes.add(newNote);
+    }
+
+    /**
+     * Retrieves the list of grades on this page.
+     *
+     * @return The list of grades.
+     */
+    public ArrayList<Grade> getNotes() {
+        return notes;
+    }
+
+    /**
+     * Sets the list of grades for this page.
+     *
+     * @param notes The list of grades to set.
+     */
+    public void setNotes(ArrayList<Grade> notes) {
+        this.notes = notes;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public int hashCode() {
+        final int prime = 31;
+        int result = 1;
+        for (var i : notes) {
+            result += i.hashCode();
+        }
+        return result * prime;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @ExcludeFromJacocoGeneratedReport
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj) {
+            return true;
+        }
+        if (obj == null) {
+            return false;
+        }
+        if (getClass() != obj.getClass()) {
+            return false;
+        }
+        MarksPage other = (MarksPage) obj;
+        if (notes == null) {
+            if (other.notes != null) {
+                return false;
+            }
+        }
+        Set<Grade> thisSet = new HashSet<>(notes);
+        Set<Grade> otherSet = new HashSet<>(other.notes);
+        return thisSet.equals(otherSet);
+    }
+}
diff --git a/task_1_4_1/app/src/test/java/task/StudentBookTest.java b/task_1_4_1/app/src/test/java/task/StudentBookTest.java
new file mode 100644
index 0000000..f26e16a
--- /dev/null
+++ b/task_1_4_1/app/src/test/java/task/StudentBookTest.java
@@ -0,0 +1,146 @@
+package task;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+import org.junit.jupiter.api.Test;
+
+class StudentBookTest {
+    GradeBook testBook = testData();
+
+    GradeBook testData() {
+        try {
+            GradeBook book = new GradeBook("Vlasov Vlas Vlasovich", 4);
+            book.writeInGradeBook(1, "Math", 5, true);
+            book.writeInGradeBook(1, "Rus", 3, false);
+            book.writeInGradeBook(1, "Discrete", 4, true);
+            book.writeInGradeBook(1, "History", 4, true);
+            book.writeInGradeBook(1, "Haskell", 5, true);
+            book.writeInGradeBook(1, "Digital Platforms", 5, false);
+            book.writeInGradeBook(1, "Imperative Programming", 5, true);
+            book.writeInGradeBook(2, "Imperative Programming", 4, true);
+            book.writeInGradeBook(2, "SQL", 2, false);
+            book.writeInGradeBook(2, "Math", 4, true);
+            book.writeInGradeBook(4, "Diploma", 5, true);
+            book.writeInGradeBook(3, "Introdution to AI", 5, true);
+            book.writeInGradeBook(3, "OOP", 5, true);
+            book.writeInGradeBook(3, "Diffurs", 4, true);
+            book.writeInGradeBook(3, "OSI", 5, true);
+            book.writeInGradeBook(4, "Models", 5, true);
+            book.writeInGradeBook(4, "Philosophy", 5, true);
+            return book;
+        } catch (Exception e) {
+            System.out.println(e.getMessage());
+            return null;
+        }
+        
+    }
+
+    @Test
+    public void setAndGetStudentNameTest() {
+        try {
+            testBook.setStudentName("Ivanov Ivan Ivanovich");
+        } catch (GradeException e) {
+            System.out.println(e.getMessage());
+        }
+        assertEquals("Ivanov Ivan Ivanovich", testBook.getStudentName());
+    }
+
+    @Test
+    public void setStudentIncorrectNameFormatExceptionTest() {
+        assertThrows(GradeException.class, () -> testBook.setStudentName("Ivan Ivanovich"));
+    }
+
+    @Test
+    public void setStudentDigitsInNameExceptionTest() {
+        try {
+            testBook.setStudentName("Ivanov I4an Ivanovich");
+        } catch (GradeException e) {
+            assertTrue(true);
+        }
+    }
+
+    @Test
+    public void incorrectPageCountTest() {
+        try {
+            testBook.writeInGradeBook(10, null, 3, false);
+        } catch (GradeException e) {
+            assertTrue(true);
+        }
+    }
+
+    @Test
+    public void incorrectMarktTest() {
+        try {
+            testBook.writeInGradeBook(3, null, 187, true);
+        } catch (GradeException e) {
+            assertTrue(true);
+        }
+    }
+
+    @Test
+    public void writeInAndRemoveFromGradeBookTest() {
+        var newBook = testData();
+        try {
+            testBook.writeInGradeBook(3, "Fizra", 5, false);
+            testBook.removeFromGradeBook(3, "Fizra");
+        } catch (GradeException e) {
+            System.out.println(e.getMessage());
+        }
+        assertEquals(newBook, testBook);
+    }
+    
+    @Test
+    public void scholarshipTest() {
+        assertTrue(testBook.scholarship(4));
+    }
+
+    @Test
+    public void redDiplomaTest() {
+        assertFalse(testBook.redDiploma());
+    }
+    
+    @Test
+    public void redDiplomaGoodFinalTest() {
+        GradeBook newBook = null;
+        try {
+            newBook = new GradeBook("Petrov Petr Petrovich", 1);
+            newBook.writeInGradeBook(1, "Math", 5, true);
+            newBook.writeInGradeBook(1, "Diploma", 5, true);
+        } catch (GradeException e) {
+            System.out.println(e.getMessage());
+        }
+        assertTrue(newBook.redDiploma());
+    }
+
+    @Test
+    public void averageMarkTest() {
+        assertEquals(4.529412f, testBook.averageMark());
+    }
+
+    @Test
+    public void hashCodeTest() {
+        var newBook = testData();
+        newBook.removeFromGradeBook(1, "Haskell");
+        try {
+            newBook.writeInGradeBook(1, "Haskell", 5, true);
+        } catch (GradeException e) {
+            System.out.println(e.getMessage());
+        }
+        assertEquals(testBook.hashCode(), newBook.hashCode());
+    }
+
+    @Test
+    public void toStringTest() {
+        try {
+            var newBook = new GradeBook("Palkin Igor Alexandrovich", 2);
+            newBook.writeInGradeBook(1, "Math", 4, true);
+            newBook.writeInGradeBook(2, "Rus", 4, true);
+            newBook.writeInGradeBook(2, "Phis", 4, true);
+        } catch (GradeException e) {
+            System.out.println(e.getMessage());
+        }
+    }
+}
diff --git a/task_1_4_1/gradle/wrapper/gradle-wrapper.jar b/task_1_4_1/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 0000000..7f93135
Binary files /dev/null and b/task_1_4_1/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/task_1_4_1/gradle/wrapper/gradle-wrapper.properties b/task_1_4_1/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000..3fa8f86
--- /dev/null
+++ b/task_1_4_1/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,7 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.4-bin.zip
+networkTimeout=10000
+validateDistributionUrl=true
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
diff --git a/task_1_4_1/gradlew b/task_1_4_1/gradlew
new file mode 100644
index 0000000..1aa94a4
--- /dev/null
+++ b/task_1_4_1/gradlew
@@ -0,0 +1,249 @@
+#!/bin/sh
+
+#
+# Copyright © 2015-2021 the original authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+##############################################################################
+#
+#   Gradle start up script for POSIX generated by Gradle.
+#
+#   Important for running:
+#
+#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
+#       noncompliant, but you have some other compliant shell such as ksh or
+#       bash, then to run this script, type that shell name before the whole
+#       command line, like:
+#
+#           ksh Gradle
+#
+#       Busybox and similar reduced shells will NOT work, because this script
+#       requires all of these POSIX shell features:
+#         * functions;
+#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
+#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
+#         * compound commands having a testable exit status, especially «case»;
+#         * various built-in commands including «command», «set», and «ulimit».
+#
+#   Important for patching:
+#
+#   (2) This script targets any POSIX shell, so it avoids extensions provided
+#       by Bash, Ksh, etc; in particular arrays are avoided.
+#
+#       The "traditional" practice of packing multiple parameters into a
+#       space-separated string is a well documented source of bugs and security
+#       problems, so this is (mostly) avoided, by progressively accumulating
+#       options in "$@", and eventually passing that to Java.
+#
+#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
+#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
+#       see the in-line comments for details.
+#
+#       There are tweaks for specific operating systems such as AIX, CygWin,
+#       Darwin, MinGW, and NonStop.
+#
+#   (3) This script is generated from the Groovy template
+#       https://github.com/gradle/gradle/blob/HEAD/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       within the Gradle project.
+#
+#       You can find Gradle at https://github.com/gradle/gradle/.
+#
+##############################################################################
+
+# Attempt to set APP_HOME
+
+# Resolve links: $0 may be a link
+app_path=$0
+
+# Need this for daisy-chained symlinks.
+while
+    APP_HOME=${app_path%"${app_path##*/}"}  # leaves a trailing /; empty if no leading path
+    [ -h "$app_path" ]
+do
+    ls=$( ls -ld "$app_path" )
+    link=${ls#*' -> '}
+    case $link in             #(
+      /*)   app_path=$link ;; #(
+      *)    app_path=$APP_HOME$link ;;
+    esac
+done
+
+# This is normally unused
+# shellcheck disable=SC2034
+APP_BASE_NAME=${0##*/}
+# Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036)
+APP_HOME=$( cd "${APP_HOME:-./}" > /dev/null && pwd -P ) || exit
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD=maximum
+
+warn () {
+    echo "$*"
+} >&2
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+} >&2
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "$( uname )" in                #(
+  CYGWIN* )         cygwin=true  ;; #(
+  Darwin* )         darwin=true  ;; #(
+  MSYS* | MINGW* )  msys=true    ;; #(
+  NONSTOP* )        nonstop=true ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD=$JAVA_HOME/jre/sh/java
+    else
+        JAVACMD=$JAVA_HOME/bin/java
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD=java
+    if ! command -v java >/dev/null 2>&1
+    then
+        die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+fi
+
+# Increase the maximum file descriptors if we can.
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+    case $MAX_FD in #(
+      max*)
+        # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC2039,SC3045
+        MAX_FD=$( ulimit -H -n ) ||
+            warn "Could not query maximum file descriptor limit"
+    esac
+    case $MAX_FD in  #(
+      '' | soft) :;; #(
+      *)
+        # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC2039,SC3045
+        ulimit -n "$MAX_FD" ||
+            warn "Could not set maximum file descriptor limit to $MAX_FD"
+    esac
+fi
+
+# Collect all arguments for the java command, stacking in reverse order:
+#   * args from the command line
+#   * the main class name
+#   * -classpath
+#   * -D...appname settings
+#   * --module-path (only if needed)
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if "$cygwin" || "$msys" ; then
+    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
+    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
+
+    JAVACMD=$( cygpath --unix "$JAVACMD" )
+
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    for arg do
+        if
+            case $arg in                                #(
+              -*)   false ;;                            # don't mess with options #(
+              /?*)  t=${arg#/} t=/${t%%/*}              # looks like a POSIX filepath
+                    [ -e "$t" ] ;;                      #(
+              *)    false ;;
+            esac
+        then
+            arg=$( cygpath --path --ignore --mixed "$arg" )
+        fi
+        # Roll the args list around exactly as many times as the number of
+        # args, so each arg winds up back in the position where it started, but
+        # possibly modified.
+        #
+        # NB: a `for` loop captures its iteration list before it begins, so
+        # changing the positional parameters here affects neither the number of
+        # iterations, nor the values presented in `arg`.
+        shift                   # remove old arg
+        set -- "$@" "$arg"      # push replacement arg
+    done
+fi
+
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Collect all arguments for the java command:
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments,
+#     and any embedded shellness will be escaped.
+#   * For example: A user cannot expect ${Hostname} to be expanded, as it is an environment variable and will be
+#     treated as '${Hostname}' itself on the command line.
+
+set -- \
+        "-Dorg.gradle.appname=$APP_BASE_NAME" \
+        -classpath "$CLASSPATH" \
+        org.gradle.wrapper.GradleWrapperMain \
+        "$@"
+
+# Stop when "xargs" is not available.
+if ! command -v xargs >/dev/null 2>&1
+then
+    die "xargs is not available"
+fi
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
+#   set -- "${ARGS[@]}" "$@"
+#
+# but POSIX shell has neither arrays nor command substitution, so instead we
+# post-process each arg (as a line of input to sed) to backslash-escape any
+# character that might be a shell metacharacter, then use eval to reverse
+# that process (while maintaining the separation between arguments), and wrap
+# the whole thing up as a single "set" statement.
+#
+# This will of course break if any of these variables contains a newline or
+# an unmatched quote.
+#
+
+eval "set -- $(
+        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
+        xargs -n1 |
+        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
+        tr '\n' ' '
+    )" '"$@"'
+
+exec "$JAVACMD" "$@"
diff --git a/task_1_4_1/gradlew.bat b/task_1_4_1/gradlew.bat
new file mode 100644
index 0000000..93e3f59
--- /dev/null
+++ b/task_1_4_1/gradlew.bat
@@ -0,0 +1,92 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%"=="" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%"=="" set DIRNAME=.
+@rem This is normally unused
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if %ERRORLEVEL% equ 0 goto execute
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if %ERRORLEVEL% equ 0 goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+set EXIT_CODE=%ERRORLEVEL%
+if %EXIT_CODE% equ 0 set EXIT_CODE=1
+if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
+exit /b %EXIT_CODE%
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/task_1_4_1/settings.gradle b/task_1_4_1/settings.gradle
new file mode 100644
index 0000000..9ee0aec
--- /dev/null
+++ b/task_1_4_1/settings.gradle
@@ -0,0 +1,14 @@
+/*
+ * This file was generated by the Gradle 'init' task.
+ *
+ * The settings file is used to specify which projects to include in your build.
+ * For more detailed information on multi-project builds, please refer to https://docs.gradle.org/8.4/userguide/building_swift_projects.html in the Gradle documentation.
+ */
+
+plugins {
+    // Apply the foojay-resolver plugin to allow automatic download of JDKs
+    id 'org.gradle.toolchains.foojay-resolver-convention' version '0.7.0'
+}
+
+rootProject.name = 'task_1_4_1'
+include('app')