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

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