#include <bits/stdc++.h>
using namespace std;
using namespace std;
using ll = long long;
#define reps(i, a, n) for (ll i = (a); i < (ll)(n); ++i)
#define rep(i, n) reps(i, 0, n)
#define all(a) (a).begin(), (a).end()
//なんかstd::vector<bool>の挙動を修正できるやつ

/* alias */
using ull = unsigned long long;

using ll = long long;
using vi = vector<int>;
using vl = vector<long>;
using vll = vector<long long>;
using vvi = vector<vi>;
using vvl = vector<vl>;
using vvll = vector<vll>;
using vs = vector<string>;
using pii = pair<int, int>;
int main() {
  int n;
  cin >> n;
  if (1 <= n && n <= 2 || n == 12)
    cout << "winter\n";
  else if (3 <= n && n <= 5)
    cout << "spring\n";
  else if (6 <= n && n <= 8)
    cout << "summer\n";
  else
    cout << "fall\n";
}