#include<iostream>
#include<cstdio>
using namespace std;
typedef long long ll; int main()
{
ll n;
while(~scanf("%I64d",&n))
{//其实算是 贪心了吧
//先手想赢,他会x2,这样子才能尽量避免让后手赢
//后手想赢,他就会x9,只有乘最大的,他胜算才最大
int t=0;
ll l=1,r=9;
while(1)
{
if(n>=l&&n<=r) break;
l=r+1;
if(t%2==0)
r*=2;
else r*=9;
t++;
}
if(t%2==0)
printf("Stan wins.\n");
else printf("Ollie wins.\n");
}
return 0;
}