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

#ifdef local
#include "debug.hpp"
#else
#define debug(...) ;
#endif

int main(void) {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    constexpr char endl = '\n';

    int x;
    cin >> x;

    string ans = "winter";
    if (3 <= x && x <= 5) ans = "spring";
    else if (6 <= x && x <= 8) ans = "summer";
    else if (9 <= x && x <= 11) ans = "fall";
    
    cout << ans << endl;

    return 0;
}