#include<iostream>
#include<vector>
#include<string>
#include<algorithm>
#include<set>
#include<queue>
#include<cassert>
#include<cmath>
#include<iomanip>
#include<map>
#include<functional>
//#include<bits/stdc++.h>
using namespace std;
using ll = long long;

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