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

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