using System;

public class Program

{

    public static void Main()

    {

        int sum50 = 0;

        int i = 1;

        for (i = 1; i <=50; i++)

        {

            sum50 = sum50 + i;  

        }

        Console.WriteLine("The sum of every integer to 50 is {0}", sum50);

        Console.WriteLine("Want me to prove it? enter y or n");

        string proveIt = Console.ReadLine();

        if (proveIt == "y" || proveIt == "Y")

        {

                sum50 = 0;

                i = 1;

            while (i <=50)

            {

                Console.Write("Sum = {0} + {1} = ", sum50.ToString().PadLeft(4), i.ToString().PadRight(2));

                sum50 = sum50 + i;  

                Console.Write(sum50);

                Console.WriteLine();

                i++;

            }

        }

    }

}