import java.util.Scanner;
public class Main{
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		while(sc.hasNextInt()){
			int r1 = sc.nextInt();
			int r2 = sc.nextInt();
			if(r1==0 && r2==0)
				break;
			playGame(r1,r2);
		}
	}
	private static void playGame(int r1, int r2) {	
		int g, r, count=0;
		while(r1%r2!=0){
			g = r1/r2;
			if(g>1) break;
			if(r1>=r2) count++;
			r = r1-g*r2;
			r1 = r2;
			r2 = r;
		}
		if(count%2 == 1){
			System.out.println("Ollie wins");
		}else{
			System.out.println("Stan wins");
		}
	}
}