[백준] 5086번 : 배수와 약수 - C#

https://www.acmicpc.net/problem/5086

using System;

class Program
{
    static void Main() {
        for(;;){
            string[] s=Console.ReadLine().Split(' ');
            int a=int.Parse(s[0]);
            int b=int.Parse(s[1]);
            if(a==0&&b==0) break;
            if(a>=b&&a%b==0) Console.WriteLine("multiple");
            else if(b>=a&&b%a==0) Console.WriteLine("factor");
            else Console.WriteLine("neither");
        }
    }
}