#include <bits/stdc++.h>

using namespace std;
void fast_io() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
}

int main() {
    fast_io();
    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";
    }
}