using System;

public class Repetition

{

    public static void Main()

    {

        {

            int i, sum = 0;

            double avg;

​

            for (i = 1; i <= 100; i++)

​

            {

                sum += i;

            }

            Console.WriteLine("Sum = {0}", sum);

            avg = sum / 100.0;

            Console.WriteLine("The Average = {0}", avg);

​

​

​

​

        }

                {

​

            int j = 1, sum = 0;

            double average = 0;

​

            while (j <= 100)

            {

                sum += j;

                j++;

            }

            Console.WriteLine("Sum = {0}", sum);

​

            average = sum / 100.0;

            Console.WriteLine("The Average = {0}", average);

​

​

        }

        {

            int k = 1;

            int sum = 0;

            double avr;

            do

            {

                sum += k;

                k++;

            } while (k <= 100);

            Console.WriteLine("Sum = {0}", sum);

            avr = sum / 100.0;

            Console.WriteLine("The Average = {0}", avr);

        }

    }

}