[백준 / C#] 10952번 A+B - 5

using System.Text;
using System.Threading.Channels;


internal class Program
{
    static void Main(string[] args)
    {
        while (true)
        {
            string[] a = Console.ReadLine().Split();

            int num1 = int.Parse(a[0]);
            int num2 = int.Parse(a[1]);
            if ((num1 + num2) != 0)
                Console.WriteLine(num1 + num2);
            else
                break;
        }    
    }
}