using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Please enter 1st number");

        int number1 = Convert.ToInt32(Console.ReadLine());

        Console.WriteLine("Please enter 2nd number");

        int number2 = Convert.ToInt32(Console.ReadLine());

        Console.WriteLine("Please enter 3h number");

        int number3 = Convert.ToInt32(Console.ReadLine());

        int result = (number1 + number2 + number3);

        Console.WriteLine(result);

    }

}