//Time 0ms, Memory 280K
#include<iostream>
using namespace std;
int main()
{
int n,t;
while(cin>>n)
{
t=18;
while(t<n) t*=18;
t/=18;
if(t*9>=n) cout<<"Stan wins."<<endl;
else cout<<"Ollie wins."<<endl;
}
return 0;
}