//POJ 2348

 #include<cstdio>

 #include<algorithm>

 bool game(int a,int b){

     if (a%b==) return ;

     else if (a-b<b) return !game(b,a-b);

     return ;//若a-b>b 则先手必胜

 }

 int main(){

     int a,b;

     while(scanf("%d%d",&a,&b)!=EOF){

         if (!a && !b) break;

         if (a<b) std::swap(a,b);

         printf(game(a,b) ? "Stan wins\n" : "Ollie wins\n");

     }

     return ;

 }