#include<iostream>
#include<cstdio>
#include<cstring>
#include<cmath>
#include<string>
#include<algorithm>
#include<cstdlib>
using namespace std;
int a,b;
int main()
{
      while(scanf("%d%d",&a,&b)!=EOF)
      {
            if(a==0&&b==0)
                  break;
            if(a<b) swap(a,b);
            bool flag=true;
            while(1)
            {
                  if(b==0||a%b==0||a/b>=2)
                        break;
                  int t=b;
                  b=a-b;
                  a=t;
                  flag=!flag;
            }
            if(flag)
            {
                  printf("Stan wins\n");
            }
            else
                  printf("Ollie wins\n");
      }
      return 0;
}