#pragma GCC optimize("Ofast")
#include <bits/stdc++.h>
using namespace std;
typedef long long int ll;
typedef unsigned long long int ull;

mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
ll myRand(ll B) {
    return (ull)rng() % B;
}
inline double time() {
    return static_cast<long double>(chrono::duration_cast<chrono::nanoseconds>(chrono::steady_clock::now().time_since_epoch()).count()) * 1e-9;
}

int main(){
    cin.tie(nullptr);
    ios::sync_with_stdio(false);
    int y; cin >>y;
    if (y == 12 or y <= 2) {
        cout << "winter" << endl;
    }
    else if (y <= 5) {
        cout << "spring" << endl;
    }
    else if (y <= 8) {
        cout << "summer" << endl;
    }
    else {
        cout << "fall" << endl;
    }
}