#include <bits/stdc++.h>
#include <math.h>
#define yes (cout<<"Yes"<<endl)
#define no (cout<<"No"<<endl)
using namespace std;

int main() {
int n;cin>>n;
if(3<=n&&n<=5)cout<<"spring"<<endl;
else if(6<=n&&n<=8)cout<<"summer"<<endl;
else if(9<=n&&n<=11)cout<<"fall"<<endl;
else cout<<"winter"<<endl;
}