//一系列推导
#include<iostream>
#include<cstdio>
using namespace std;
void solve(int a,int b)
{
bool f=true;
while(1)
{
if(a<b) swap(a,b);
if(a-b>b||a%b==0) break;
a-=b;
f^=true;
}
if(f) puts("Stan wins");
else puts("Ollie wins");
}
int main(){
int a,b;
while(~scanf("%d%d",&a,&b)&&(a||b))
solve(a,b);
return 0;
}
