[백준] 2558번 : A+B-2 - C#

https://www.acmicpc.net/problem/2558

using System;

class Program
{
    static void Main() {
        string s=Console.ReadLine();
        string s1=Console.ReadLine();
        int a=int.Parse(s);
        int b=int.Parse(s1);
        Console.Write("{0}",a+b);
    }
}