using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("firstNumber=");

        var firstNumber = 30;

        int.Parse(Console.ReadLine());

        Console.WriteLine("secondNumber=");

        var secondNumber = 39;

        int.Parse(Console.ReadLine());

        Console.Write("SUM=");

        var SUM = firstNumber + secondNumber;

        Console.Write(SUM);

    }

}