diff --git a/Core/Menu.cs b/Core/Menu.cs
new file mode 100644
index 0000000..1b395a9
--- /dev/null
+++ b/Core/Menu.cs
@@ -0,0 +1,100 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Reflection;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace laba3.Core
+{
+    /// <summary>
+    /// TUI menu;
+    /// </summary>
+    internal class Menu
+    {
+        private List<Option> options;
+        private int selected;
+        private string title;
+        
+        /// <summary>
+        /// Constructor of menu;
+        /// </summary>
+        /// <param name="title">Title of menu</param>
+        public Menu(string title)
+        {
+            this.title = title;
+            this.options = new List<Option> { };
+        }
+
+        /// <summary>
+        /// Add option to menu;
+        /// </summary>
+        /// <param name="name">Name of option</param>
+        /// <param name="action">Action, runs if option selected</param>
+        public void AddOption(string name, Action action)
+        {
+            this.options.Add(new Option(name, action));
+        }
+
+        /// <summary>
+        /// Run menu;
+        /// Console will be clean!;
+        /// </summary>
+        public void RunMenu()
+        {
+            selected = 0;
+            this.PrintMenu();
+            ConsoleKeyInfo keyinfo;
+            do
+            {
+                keyinfo = Console.ReadKey();
+
+                if (keyinfo.Key == ConsoleKey.DownArrow)
+                {
+                    if (selected + 1 < options.Count)
+                    {
+                        selected++;
+                        this.PrintMenu();
+                    }
+                }
+                if (keyinfo.Key == ConsoleKey.UpArrow)
+                {
+                    if (selected > 0)
+                    {
+                        selected--;
+                        this.PrintMenu();
+                    }
+                }
+                if (keyinfo.Key == ConsoleKey.Enter)
+                {
+                    Console.Clear();
+                    options[selected].Action.Invoke();
+                }
+            } while (keyinfo.Key != ConsoleKey.Enter);
+        }
+        private void PrintMenu()
+        {
+            Console.Clear();
+            Console.WriteLine(title);
+            int optionIndex = 0;
+            foreach (Option option in options)
+            {
+                string pointer = optionIndex == selected ? " ->" : "   ";
+                Console.WriteLine($"{pointer}{option.Name}");
+                optionIndex++;
+            }
+        }
+
+        private struct Option
+        {
+            public string Name { get; }
+            public Action Action { get; }
+
+            public Option(string name, Action action)
+            {
+                Name = name;
+                Action = action;
+            }
+        }
+    }
+}
diff --git a/Core/Program.cs b/Core/Program.cs
new file mode 100644
index 0000000..0348517
--- /dev/null
+++ b/Core/Program.cs
@@ -0,0 +1,78 @@
+using laba3.Core;
+using laba3.Subprograms;
+using System;
+
+class Program
+{
+    static void Main()
+    {
+        Menu mainMenu = new Menu("Select option");
+        mainMenu.AddOption("Guess answer math game", () => GuessAnswerMath.RunGame());
+        mainMenu.AddOption("About me", () => PrintAboutMe());
+        mainMenu.AddOption("Array sort", () => new ArraySortDemo().Run());
+        mainMenu.AddOption("Snake game", () => {
+            int sizex = 0;
+            int sizey = 0;
+            SnakeGame.Level difficulty = 0;
+            Menu sizeMenu = new Menu("Select world size");
+            sizeMenu.AddOption("Small size (10x10)", () => { sizex = 10; sizey = 10; });
+            sizeMenu.AddOption("Medium size (20x20)", () => { sizex = 20; sizey = 20; });
+            sizeMenu.AddOption("Big size (40x20)", () => { sizex = 40; sizey = 20; });
+            sizeMenu.RunMenu();
+
+            Menu difficultyMenu = new Menu("Select difficulty");
+            difficultyMenu.AddOption("Easy", () => { difficulty = SnakeGame.Level.Low; });
+            difficultyMenu.AddOption("Medium", () => { difficulty = SnakeGame.Level.Medium; });
+            difficultyMenu.AddOption("Hard", () => { difficulty = SnakeGame.Level.High; });
+            difficultyMenu.RunMenu();
+
+            SnakeGame game = new SnakeGame(difficulty, sizex, sizey);
+            game.start();
+
+
+        });
+        mainMenu.AddOption("Exit", () => Exit());
+
+        Utils.Arrays withoutParams = new Utils.Arrays();
+        Utils.Arrays withOneParam = new Utils.Arrays(10);
+        Utils.Arrays withTwoParams = new Utils.Arrays(10, 100);
+
+        while (true)
+        {
+            mainMenu.RunMenu();
+            Console.WriteLine("Press Enter to continue");
+            while (Console.ReadKey().Key != ConsoleKey.Enter) { }
+            Console.Clear();
+        }
+    }
+
+    private static void PrintAboutMe()
+    {
+        const string aboutme = @"Морозов Иван Сергеевич 6106 aka DIvan2000
+Website: divan2000.su";
+        Console.WriteLine(aboutme);
+    }
+    private static void Exit()
+    {
+        if(ExitMenu())
+            Environment.Exit(0);
+    }
+    private static bool ExitMenu()
+    {
+        while (true)
+        {
+            Console.WriteLine("Really exit? [y/n]");
+            switch (Console.ReadKey(true).KeyChar)
+            {
+                case 'y':
+                    return true;
+                case 'n':
+                    return false;
+                default:
+                    Console.Clear();
+                    Console.WriteLine("Wrong key!");
+                    break;
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/Core/Utils.cs b/Core/Utils.cs
new file mode 100644
index 0000000..9e1c87a
--- /dev/null
+++ b/Core/Utils.cs
@@ -0,0 +1,220 @@
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace laba3.Core
+{
+    /// <summary>
+    /// Different utils;
+    /// </summary>
+    internal static class Utils
+    {
+        /// <summary>
+        /// CLI read double from keyboard;
+        /// </summary>
+        /// <param name="name">Name will be printed before scan</param>
+        /// <returns></returns>
+        public static double ReadDouble(string name)
+        {
+            double result;
+            string inputBuffer;
+            bool isValid;
+            do
+            {
+                Console.Write($"Введите {name}: ");
+                inputBuffer = Console.ReadLine();
+                isValid = double.TryParse(inputBuffer, out result);
+                if (!isValid)
+                    Console.WriteLine("Неверный тип аргумента!");
+            } while (!isValid);
+
+            return result;
+        }
+
+        /// <summary>
+        /// CLI read int from keyboard;
+        /// </summary>
+        /// <param name="name">Name will be printed before scan</param>
+        /// <returns></returns>
+        public static int ReadInt(string name)
+        {
+            int result;
+            string inputBuffer;
+            bool isValid;
+            do
+            {
+                Console.Write($"Введите {name}: ");
+                inputBuffer = Console.ReadLine();
+                isValid = int.TryParse(inputBuffer, out result);
+                if (!isValid)
+                    Console.WriteLine("Неверный тип аргумента!");
+            } while (!isValid);
+
+            return result;
+        }
+        /// <summary>
+        /// Util for init arrays with random values, copy it, print it, etc.;
+        /// </summary>
+        public class Arrays
+        {
+            private int size;
+            private int[] array;
+
+            /// <summary>
+            /// Array size of 10;
+            /// Filled random values;
+            /// </summary>
+            public Arrays()
+            {
+                size = 10;
+                array = new int[size];
+                initRandom();
+            }
+            /// <summary>
+            /// Array size of X;
+            /// Filled random values;
+            /// </summary>
+            /// <param name="size">Size of array</param>
+            public Arrays(int size)
+            {
+                this.size = size;
+                array = new int[size];
+                initRandom();
+            }
+
+            /// <summary>
+            ///Array size of X;
+            /// Filled random values;
+            /// </summary>
+            /// <param name="size">Size of array</param>
+            /// <param name="max">Max value of random</param>
+            public Arrays(int size, int max)
+            {
+                this.size = size;
+                array = new int[size];
+                initRandom(max);
+            }
+            /// <summary>
+            /// Copy array;
+            /// </summary>
+            /// <param name="src">Source from copy</param>
+            public Arrays (Arrays src)
+            {
+                this.size = src.size;
+                this.array = new int[src.size];
+                for (int i = 0; i < src.size; i++)
+                {
+                    this.array[i] = src.array[i];
+                }
+            }
+            /// <summary>
+            /// Get array;
+            /// </summary>
+            /// <returns>Array pointer</returns>
+            public int[] getArray()
+            {
+                return this.array;
+            }
+
+            /// <summary>
+            /// Get size;
+            /// </summary>
+            /// <returns>Array size</returns>
+            public int getSize()
+            {
+                return this.size;
+            }
+
+            /// <summary>
+            /// Print array in console;
+            /// </summary>
+            /// <param name="name">Name will be printed</param>
+            public void print(string name)
+            {
+                Console.Write($"Массив {name}: [");
+                foreach (int x in this.array) { Console.Write($"{x}, "); }
+                Console.WriteLine("\b\b]");
+            }
+
+            /// <summary>
+            /// Sort this array with Gnome Sort;
+            /// Avg time O(n^2);
+            /// </summary>
+            /// <returns>Ellapsed ms</returns>
+            public long gnomeSort()
+            {
+                Stopwatch sw = new Stopwatch();
+                sw.Start();
+
+                int i = 1; int j = 2;
+                while (i < size)
+                {
+                    if (array[i - 1] < array[i])
+                    {
+                        i = j;
+                        j = j + 1;
+                    }
+                    else
+                    {
+                        (array[i - 1], array[i]) = (array[i], array[i - 1]);
+                        i = i - 1;
+                        if (i == 0)
+                        {
+                            i = j;
+                            j = j + 1;
+                        }
+                    }
+                }
+
+                sw.Stop();
+                return sw.ElapsedMilliseconds;
+            }
+
+            /// <summary>
+            /// Sort this array with Shell Sort;
+            /// Avg time depends on gap sequence;
+            /// </summary>
+            /// <returns>Ellapsed ms</returns>
+            public long shellSort()
+            {
+                Stopwatch sw = new Stopwatch();
+                sw.Start();
+
+                for (int s = size / 2; s > 0; s /= 2)
+                {
+                    for (int i = s; i < size; ++i)
+                    {
+                        for (int j = i - s; j >= 0 && array[j] > array[j + s]; j -= s)
+                        {
+                            (array[j], array[j + s]) = (array[j + s], array[j]);
+                        }
+                    }
+                }
+
+                sw.Stop();
+                return sw.ElapsedMilliseconds;
+            }
+
+            private void initRandom()
+            {
+                Random rnd = new Random();
+                for (int i = 0; i < size; i++)
+                {
+                    array[i] = rnd.Next();
+                }
+            }
+
+            private void initRandom(int max)
+            {
+                Random rnd = new Random();
+                for (int i = 0; i < size; i++)
+                {
+                    array[i] = rnd.Next(max);
+                }
+            }
+        }
+    }
+}
diff --git a/Subprograms/ArraySortDemo.cs b/Subprograms/ArraySortDemo.cs
new file mode 100644
index 0000000..10c0586
--- /dev/null
+++ b/Subprograms/ArraySortDemo.cs
@@ -0,0 +1,71 @@
+using laba3.Core;
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using static System.Runtime.InteropServices.JavaScript.JSType;
+
+namespace laba3.Subprograms
+{
+    /// <summary>
+    /// Compare computing time of 2 sorting methods;
+    /// Gnome sort and Shell sort;
+    /// </summary>
+    internal class ArraySortDemo
+    {
+        private long time1;
+        private long time2;
+
+        /// <summary>
+        /// Get values from keyboard, init arrays, start computing, print time;
+        /// Console will be clean!;
+        /// </summary>
+        public void Run()
+        {
+            Utils.Arrays array1;
+            Utils.Arrays array2;
+            int size;
+            size = ReadArrayLen();
+            array1 = new Utils.Arrays(size, 100);
+            array2 = new Utils.Arrays(array1);
+
+            Console.WriteLine("Для Массива 1 будет использована \"гномья сортировка\"");
+            Console.WriteLine("Для Массива 2 будет использована \"сортировка шелла\"");
+
+            if (size <= 10)
+                array1.print("с начальными значениями");
+            else
+                Console.WriteLine("Массивы не могут быть выведены на экран так как их размер больше 10");
+            Console.WriteLine("Сортируем...");
+
+            time1 = array1.gnomeSort();
+            time2 = array2.shellSort();
+
+            Console.WriteLine("Готово!");
+            if (size <= 10)
+            {
+                array1.print("после гномьей сортировки");
+                array2.print("после сортировки шелла  ");
+            }
+
+            Console.WriteLine($"Для сортировки 1 потребовалось {time1}мс");
+            Console.WriteLine($"Для сортировки 2 потребовалось {time2}мс");
+        }
+
+        private int ReadArrayLen()
+        {
+            int size;
+            do
+            {
+                size = Utils.ReadInt("Размер массива для сортировки");
+                Console.Clear();
+                if (size < 1)
+                    Console.WriteLine("Размер не может быть меньше 1!");
+            } while (size < 1);
+            return size;
+        }
+    }
+}
\ No newline at end of file
diff --git a/Subprograms/GuessAnswerMath.cs b/Subprograms/GuessAnswerMath.cs
new file mode 100644
index 0000000..bb6bebc
--- /dev/null
+++ b/Subprograms/GuessAnswerMath.cs
@@ -0,0 +1,91 @@
+using laba3.Core;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace laba3.Subprograms
+{
+    /// <summary>
+    /// CLI math game "Gusess the answer";
+    /// Player need to guess result of math function;
+    /// </summary>
+    internal static class GuessAnswerMath
+    {
+        /// <summary>
+        /// Runs game;
+        /// Console will be clean!;
+        /// </summary>
+        public static void RunGame()
+        {
+            const int attempts = 3;
+            Console.WriteLine("Введите аргументы функции, а затем попытайтесь угадать её значение. Количество попыток ограничено!");
+            bool isValid;
+            do
+            {
+                MathFunc.setArgs(Utils.ReadDouble("аргумент a"), Utils.ReadDouble("аргумент b"));
+                isValid = MathFunc.CheckArgs();
+                if (!isValid)
+                {
+                    Console.Clear();
+                    Console.WriteLine("Функция не определена при данных аргументах!");
+                }
+            } while (!isValid);
+            MathFunc.ComputeResult();
+            if (GameLogic(MathFunc.GetResult(), attempts))
+            {
+                Console.WriteLine("Ответ верный! Победа!");
+            } else
+            {
+                Console.WriteLine(String.Format("Попытки кончились! Правильный ответ: {0:0.00}", MathFunc.GetResult()));
+            }
+        }
+
+        private static bool GameLogic(double correctAnswer, int attempts)
+        {
+            bool win = false;
+            for (int i = attempts; i > 0; i--)
+            {
+                Console.Clear();
+                Console.WriteLine($"Количество попыток: {i}");
+                double answer = Utils.ReadDouble("ваш ответ");
+                win = Math.Abs(correctAnswer - answer) < 0.01;
+                if (win)
+                {
+                    i = 0;
+                }
+            }
+            return win;
+        }
+        private static class MathFunc
+        {
+            private const double PI = Math.PI;
+            private const double E = Math.E;
+            private static double a;
+            private static double b;
+            private static double result;
+
+            public static void setArgs(double a, double b)
+            {
+                MathFunc.a = a;
+                MathFunc.b = b;
+            }
+
+            public static void ComputeResult()
+            {
+                MathFunc.result = Math.Sin((Math.Pow(a, 3) + Math.Pow(b, 5)) / (2 * PI)) + Math.Pow(Math.Cos(a + b), (1.0 / 3.0));
+            }
+
+            public static bool CheckArgs()
+            {
+                return Math.Cos(a + b) >= 0;
+            }
+
+            public static double GetResult()
+            {
+                return result;
+            }
+        }
+    }
+}
diff --git a/Subprograms/SnakeGame.cs b/Subprograms/SnakeGame.cs
new file mode 100644
index 0000000..d31e0fd
--- /dev/null
+++ b/Subprograms/SnakeGame.cs
@@ -0,0 +1,380 @@
+using System.Diagnostics;
+
+namespace laba3.Subprograms
+{
+    /// <summary>
+    /// TUI game "Snake";
+    /// The player controls the snake.
+    /// The player has to eat apples to increase the length of the snake
+    /// and try not to crash into the wall or themselves;
+    /// </summary>
+    internal class SnakeGame
+    {
+        int size_x;
+        int size_y;
+        int score;
+        int size_xy;
+        Level difficulty;
+        Tiles[,] world;
+        Snake snake;
+        Random rnd;
+
+        private bool gameover;
+        /// <summary>
+        /// Game world constructor;
+        /// </summary>
+        /// <param name="difficulty">Game speed</param>
+        /// <param name="size_x">Game world size dim x</param>
+        /// <param name="size_y">Game world size dim y</param>
+        public SnakeGame(Level difficulty, int size_x, int size_y)
+        {
+            this.size_x = size_x;
+            this.size_y = size_y;
+            this.difficulty = difficulty;
+            world = new Tiles[size_x, size_y];
+            rnd = new Random();
+            score = 0;
+            size_xy = size_x * size_y;
+        }
+        /// <summary>
+        /// Start game;
+        /// Console will be clean!;
+        /// </summary>
+        public void start()
+        {
+            int msPerTick = difficulty switch
+            {
+                Level.Low => 500,
+                Level.Medium => 250,
+                Level.High => 100,
+                _ => 500,
+            };
+            gameover = false;
+
+            Console.Clear();
+            Console.CursorVisible = false;
+            snake = new Snake(new Point(size_x / 2, size_y / 2, this), 1, Direction.Right, this);
+
+            GenerateFood();
+
+            DrawBackground();
+            DrawWorld();
+
+            Stopwatch tickTimer = new Stopwatch();
+            while (!gameover)
+            {
+                tickTimer.Restart();
+                if (Console.KeyAvailable)
+                {
+                    ConsoleKeyInfo key = Console.ReadKey(false);
+                    snake.HandleKey(key.Key);
+                    while (Console.KeyAvailable)
+                        Console.ReadKey(false);
+                }
+                snake.Move();
+                long delta = tickTimer.ElapsedMilliseconds;
+
+                Console.SetCursorPosition(1, 0);
+                if (delta > msPerTick)
+                    Console.ForegroundColor = ConsoleColor.Red;
+                Console.Write(delta);
+
+                Thread.Sleep((int)Math.Max(0, msPerTick - delta));
+            }
+            onStop();
+        }
+
+        /// <summary>
+        /// Stop game;
+        /// </summary>
+        public void stop()
+        {
+            gameover = true;
+        }
+
+        private void onStop()
+        {
+            string gameOverTitle =
+@"
+ ###                  ##            
+#     ## ####   #    #  # # #  #  ##
+# ## # # # # # ###   #  # # # ### # 
+#  # # # # # # #     #  #  #  #   # 
+ ###  ## # # #  ##    ##   #   ## # 
+";
+            Console.Clear();
+            printArt(gameOverTitle, (Console.WindowWidth - 36) / 2, 4, ConsoleColor.DarkYellow, ConsoleColor.DarkGray);
+
+            Console.ResetColor();
+
+            string scoreString = $"Score: {score}";
+            Console.SetCursorPosition((Console.WindowWidth - scoreString.Length) / 2, 11);
+            Console.Write(scoreString);
+            Console.SetCursorPosition((Console.WindowWidth - "Press Enter to continue".Length) / 2, 14);
+            Console.CursorVisible = true;
+        }
+
+        private void printArt(string art, int x, int y, ConsoleColor primaryColor, ConsoleColor shadowColor)
+        {
+            int row = 0;
+            Console.SetCursorPosition(x, y);
+            char shadow = ' ';
+            foreach (char ch in art)
+            {
+                if (ch == '\n')
+                {
+                    if (shadow == '#')
+                    {
+                        Console.BackgroundColor = shadowColor;
+                        Console.Write(' ');
+                    }
+                    Console.SetCursorPosition(x, y++ + row);
+                    Thread.Sleep(25);
+                    shadow = ch;
+                }
+                else if (ch == ' ')
+                {
+                    if (shadow == '#')
+                    {
+                        Console.BackgroundColor = shadowColor;
+                        Console.Write(' ');
+                    }
+                    else
+                        Console.CursorLeft++;
+                    shadow = ch;
+                }
+                else if (ch == '#')
+                {
+                    Console.BackgroundColor = primaryColor;
+                    Console.Write(' ');
+                    shadow = ch;
+                }
+
+            }
+        }
+
+        private void addScore()
+        {
+            score += difficulty switch
+            {
+                Level.Low => 10,
+                Level.Medium => 50,
+                Level.High => 100,
+                _ => 1,
+            };
+        }
+
+
+        /// <summary>
+        /// Generate food in random place;
+        /// </summary>
+        public void GenerateFood()
+        {
+            int x;
+            int y;
+            do
+            {
+                x = rnd.Next(size_x);
+                y = rnd.Next(size_y);
+            } while (world[x, y] != Tiles.Void);
+            world[x, y] = Tiles.Food;
+            DrawTile(x, y);
+        }
+
+        private void DrawBackground()
+        {
+            for (int x = 1; x < (size_x + 1) * 2 + 1; x++)
+            {
+                Console.SetCursorPosition(x, 1);
+                Console.Write('#');
+                Console.SetCursorPosition(x, size_y + 2);
+                Console.Write('#');
+            }
+            for (int y = 1; y < size_y + 2; y++)
+            {
+                Console.SetCursorPosition(1, y);
+                Console.Write('#');
+
+                Console.SetCursorPosition(size_x * 2 + 1, y);
+                Console.Write('#');
+            }
+        }
+
+        private void DrawTile(int x, int y)
+        {
+            char symbol;
+            switch (world[x, y])
+            {
+                case Tiles.Void:
+                    symbol = ' ';
+                    break;
+                case Tiles.Snake:
+                    symbol = '*';
+                    Console.ForegroundColor = ConsoleColor.DarkRed;
+                    break;
+                case Tiles.Food:
+                    symbol = '@';
+                    Console.ForegroundColor = ConsoleColor.Red;
+                    break;
+                default:
+                    symbol = '?';
+                    break;
+            };
+            //Console.BackgroundColor = ConsoleColor.DarkGreen;
+            Console.SetCursorPosition((x + 1) * 2, y + 2);
+            Console.Write(symbol);
+
+            Console.BackgroundColor = ConsoleColor.Black;
+            Console.ForegroundColor = ConsoleColor.White;
+        }
+        private void DrawWorld()
+        {
+            for (int x = 0; x < size_x; x++)
+            {
+                for (int y = 0; y < size_y; y++)
+                {
+                    DrawTile(x, y);
+                }
+            }
+        }
+        private enum Tiles
+        {
+            Void,
+            Snake,
+            Food
+        }
+        public enum Level
+        {
+            Low,
+            Medium,
+            High
+        }
+        private class Snake
+        {
+            private SnakeGame game;
+            private List<Point> body;
+            private Direction direction;
+
+            public Snake(Point tail, int length, Direction initialDirection, SnakeGame game)
+            {
+                this.game = game;
+                body = new List<Point>();
+                direction = initialDirection;
+
+                for (int i = 0; i < length; i++)
+                {
+                    Point p = new Point(tail.X, tail.Y, game);
+                    body.Add(p);
+                }
+            }
+
+            public void Move()
+            {
+                Point head = GetNextPoint();
+                Point tail = body.First();
+
+                if (head.X < 0 || head.Y < 0 || head.X >= game.size_x || head.Y >= game.size_y)
+                {
+                    game.stop();
+                    return;
+                }
+
+                if (game.world[head.X, head.Y] == Tiles.Snake)
+                {
+                    game.stop();
+                    return;
+                }
+
+
+                body.Add(head);
+                if (game.world[head.X, head.Y] != Tiles.Food)
+                {
+                    body.Remove(tail);
+                    tail.UpdateWorld(Tiles.Void);
+                }
+                else
+                {
+                    game.addScore();
+                    game.GenerateFood();
+                    if (body.Count >= game.size_xy) game.stop();
+                }
+                head.UpdateWorld(Tiles.Snake);
+            }
+
+            public Point GetNextPoint()
+            {
+                Point head = body.Last();
+                Point nextPoint = new Point(head.X, head.Y, game);
+
+                switch (direction)
+                {
+                    case Direction.Right:
+                        nextPoint.X++;
+                        break;
+                    case Direction.Left:
+                        nextPoint.X--;
+                        break;
+                    case Direction.Up:
+                        nextPoint.Y--;
+                        break;
+                    case Direction.Down:
+                        nextPoint.Y++;
+                        break;
+                }
+
+                return nextPoint;
+            }
+
+            public void HandleKey(ConsoleKey key)
+            {
+                switch (key)
+                {
+                    case ConsoleKey.LeftArrow:
+                        if (direction != Direction.Right)
+                            direction = Direction.Left;
+                        break;
+                    case ConsoleKey.RightArrow:
+                        if (direction != Direction.Left)
+                            direction = Direction.Right;
+                        break;
+                    case ConsoleKey.UpArrow:
+                        if (direction != Direction.Down)
+                            direction = Direction.Up;
+                        break;
+                    case ConsoleKey.DownArrow:
+                        if (direction != Direction.Up)
+                            direction = Direction.Down;
+                        break;
+                }
+            }
+        }
+
+        enum Direction
+        {
+            Left,
+            Right,
+            Up,
+            Down
+        }
+
+        private class Point
+        {
+            private SnakeGame game { get; set; }
+            public int X { get; set; }
+            public int Y { get; set; }
+
+            public Point(int x, int y, SnakeGame game)
+            {
+                this.game = game;
+                X = x;
+                Y = y;
+            }
+
+            public void UpdateWorld(Tiles tile)
+            {
+                game.world[X, Y] = tile;
+                game.DrawTile(X, Y);
+            }
+        }
+    }
+}
diff --git a/laba3.csproj b/laba3.csproj
new file mode 100644
index 0000000..2150e37
--- /dev/null
+++ b/laba3.csproj
@@ -0,0 +1,10 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>
diff --git a/laba3.sln b/laba3.sln
new file mode 100644
index 0000000..b91b71e
--- /dev/null
+++ b/laba3.sln
@@ -0,0 +1,25 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.11.35327.3
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "laba3", "laba3.csproj", "{85E71A1C-4311-4D83-8A7B-FBB5CA9E6CA9}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{85E71A1C-4311-4D83-8A7B-FBB5CA9E6CA9}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{85E71A1C-4311-4D83-8A7B-FBB5CA9E6CA9}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{85E71A1C-4311-4D83-8A7B-FBB5CA9E6CA9}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{85E71A1C-4311-4D83-8A7B-FBB5CA9E6CA9}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {18AE73FB-3B60-4A6F-88BD-1A180147DFAB}
+	EndGlobalSection
+EndGlobal