#include <iostream>
#include <vector>
#include <cmath>
#include <map>
#include <set>
#include <iomanip>
#include <queue>
#include <algorithm>
#include <numeric>
#include <deque>
#include <complex>
#include <cassert>

using namespace std;
using ll = long long;

int main(){

    int X;
    cin >> X;

    X /= 3;
    if (X == 1) cout << "spring" << endl;
    else if (X == 2) cout << "summer" << endl;
    else if (X == 3) cout << "fall" << endl;
    else cout << "winter" << endl;

    return 0;
}