using System;

​

class Addition

{

    static void Main()

    {

        int number1;

        int number2;

        int sum;

        Console.WriteLine("enter number1: ");

        number1= int.Parse(Console.ReadLine());

        Console.WriteLine("enter number2: ");

        number2=int.Parse(Console.ReadLine());

        sum = number1+number2;

        Console.WriteLine($"sum is {sum}");

    }

}