using System;
using System.Threading;

class Program
{
    static void Main()
    {
        // Array to be used by the first thread
        int[] arr = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };

        // Default string to be reversed
        string input = "DefaultString"; // You can change this value

        // Create and start threads
        Thread t1 = new Thread(() => CalculateSquares(arr));
        Thread t2 = new Thread(() => ReverseString(input));

        t1.Start();
        t2.Start();

        // Wait for both threads to finish
        t1.Join();
        t2.Join();
    }

    // Method to calculate and print squares of array elements
    static void CalculateSquares(int[] arr)
    {
        Console.WriteLine("Original Array: " + string.Join(", ", arr));
        Console.Write("Squares of Array Elements: ");
        foreach (int number in arr)
        {
            Console.Write(number * number + " ");
        }
        Console.WriteLine();
    }

    // Method to reverse a string
    static void ReverseString(string str)
    {
        char[] charArray = str.ToCharArray();
        Array.Reverse(charArray);
        string reversed = new string(charArray);
        Console.WriteLine($"Original String: {str}");
        Console.WriteLine($"Reversed String: {reversed}");
    }
}