#include<bits/stdc++.h>
using namespace std;
using ll = long long;
#define rep(i,m,n) for(int i=m; i<n; ++i)
#define repl(i,m,n) for(ll i=m; i<n; ++i)

int main(){
    int 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;
    }
    
    return 0;
}