using System;

public class Program

{

    public static void Main()

    {

        Double num1 = 100;

        Double num2 = 200;

        Double num3 = 300;

        Double numsum = 0;

        Double average = 0;

        int counter = 0;

        Console.WriteLine("Num1 = " );

        num1 = double.Parse(Console.ReadLine());

        counter = counter +1;

        Console.WriteLine("Num2 = " );

        num2 = double.Parse(Console.ReadLine());

        counter = counter +1;

        Console.WriteLine("Num3 = " );

        num3 = double.Parse(Console.ReadLine());

        counter = counter +1;

        numsum = num1 + num2 + num3;

        average = numsum/3;

        Console.WriteLine("Sum of the 3 number = " + numsum);

        Console.WriteLine("Average of the 3 numbers = " + average);

    }

}