add program and gitignore

Program/Program.cs

@@ -0,0 +1,66 @@
+string[] array1 = {"1234", "1567", "-2", "computer science"};
+string[] array2 = new string[array1.Length];
+
+
+     void Main()
+    {
+        Console.Write("Manual Input (1) or Presset (2): ");
+        int taskNumver = Convert.ToInt32(Console.ReadLine());
+        switch (taskNumver)
+        {
+            case 1:
+                Console.Write("Print size array: ");
+                int arraySize = Convert.ToInt32(Console.ReadLine());
+                Task(craeteMass(arraySize), array2);
+                PrintArray(array2);
+                break;
+            case 2:
+                 Task(array1, array2);
+                 PrintArray(array2);
+                 break;
+
+
+        }
+    }
+
+
+string[] craeteMass(int size)
+        {
+            string[] array = new string[size];
+            
+            for (int i = 0; i < array.Length; i++)
+            {
+                Console.WriteLine($"Input {i+1} number: ");
+                array[i] = Console.ReadLine();
+            }
+
+            return array;
+
+        }
+        
+
+
+void Task(string[] array1, string[] array2)
+{
+    int count = 0;
+    for (int i = 0; i < array1.Length; i++)
+    {
+    if(array1[i].Length <= 3)
+        {
+        array2[count] = array1[i];
+        count++;
+        }
+    }
+}
+
+void PrintArray(string[] array)
+{
+    Console.WriteLine("Resault is: ");
+    for (int i = 0; i < array.Length; i++)
+    {
+        Console.Write($"{array[i]} ");
+    }
+    Console.WriteLine();
+}
+
+Main();