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

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

    int X; 
    if (!(cin >> X)) return 0;

    if (X == 12 || X == 1 || X == 2) cout << "winter\n";
    else if (3 <= X && X <= 5)       cout << "spring\n";
    else if (6 <= X && X <= 8)       cout << "summer\n";
    else                             cout << "fall\n";
    return 0;
}