// #define _GLIBCXX_DEBUG
#include <bits/stdc++.h>
using namespace std;
#define rep(i, n) for (int i = 0; i < (int)(n); ++i)
int main() {
    // Input
    int X;
    cin >> X;
    
    // Output
    if (3 <= X && X <= 5) cout << "spring" << endl;
    else if (6 <= X && X <= 8) cout << "summer" << endl;
    else if (9 <= X && X <= 11) cout << "fall" << endl;
    else cout << "winter" << endl;
}