#include <bits/stdc++.h>
using namespace  std;
 int main(){
      int X;
     cin >> X;
     if (X==12 || X==1 || X==2) {
         cout  << "winter" << endl;
     }else if (X==3 || X==4 || X==5) {
         cout << "spring" << endl;
     }else if (X==6 || X==7 || X==8) {
         cout << "summer" << endl;
     }else {
      cout << "fall" << endl;
     }
}