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

int X;
int main(){
  cin >> X;

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

  cout << ans << endl;
}