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

int main(){
  int X;
  cin >> X;
  if(X >= 3 && X <= 5){
    cout << "spring" << endl;
  }else if(X >= 6 && X <= 8){
    cout << "summer" << endl;
  }else if(X >= 9 && X <= 11){
    cout << "fall" << endl;
  }else{
    cout << "winter" << endl;
  }
  return 0;
}