#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef string str;
int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
    ll n;
    cin >> n;
    if (n >= 3 && n <= 5) cout << "spring\n";
    else if (n >= 6 && n <= 8) cout << "summer\n";
    else if (n >= 9 && n <= 11) cout << "fall\n";
    else cout << "winter\n";
    return 0;
}