using System;

public class Program

{

    public static void Main()

    {

        int a, b, c ;

        Console.Write("Enter the 1st number: ");

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

        Console.Write("Enter the 2nd number: ");

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

        Console.Write("Enter the 3rd number: ");

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

        double z = (double)(a + b + c)/3;

        Console.WriteLine("The average of the 3 integers are  " +z);

    }

}