import java.util.*; class HelloWorld { public static void main(String[] args) { Scanner sc = new Scanner(System.in); while(true){ int a = sc.nextInt(); int b = sc.nextInt(); if(a==0 && b==0 || a==b){ break; } if(b%a == 0 ){ System.out.println("factor"); } else if(a%b == 0 ){ System.out.println("multiple"); } else{ System.out.println("neither"); } } } } ez함 무한루프에서 a랑 b가 0 이거나 같으면 종료