using System;

public class Program

{

    public static void Main()

    {

        float num1,num2,num3,total;

        Console.WriteLine("***********************************************************");

        Console.Write("Number 1 = ");

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

        Console.Write("Number 2 = ");

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

        Console.Write("Number 3 = ");

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

        total = num1+num2+num3;

        Console.WriteLine("***********************************************************");

        Console.WriteLine("Summary of {0} ,{1} and {2} is {3:F}",num1,num2,num3,total);

        Console.WriteLine("***********************************************************");

        Console.WriteLine("Average of {0} / 3 is {1:F}" ,total,total /3);

    }

}