#include <bits/stdc++.h>
using namespace std;
using ll = long long;

template<class T> istream& operator >> (istream& is, vector<T>& vec) {
    for(T& x : vec) is >> x;
    return is;
}

template<class T> ostream& operator << (ostream& os, const vector<T>& vec) {
    if(vec.empty()) return os;
    os << vec[0];
    for(auto it = vec.begin(); ++it != vec.end(); ) os << ' ' << *it;
    return os;
}

int main(){
    ios::sync_with_stdio(false);
    cin.tie(0);
    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";
    }
}