using System;

public class Program

{

    public static void Main()

    {

        int hello = 1;

        int num, sum = 0;

        Console.WriteLine("Type 0 to end the program");

        do

        {

        Console.Write("Enter number: ");

        num = Convert.ToInt32(Console.ReadLine());

             sum+=num;

            if(num == 0)

            {

                Console.WriteLine("The sum is " +sum);

                break;

            }

            else if(hello == 5)

            {

                Console.WriteLine("The average is " +sum/5);

            }

            hello++;

        }

        while(hello <= 5);

    }

}