#include <iostream>
using namespace std;

int main(){
    int X;
    cin >> X;
    if (X == 3 || X == 4 || X == 5){
        cout << "spring" << endl;
    }
    else if (X == 6 || X == 7 || X == 8){
        cout << "summer" << endl;
    }
    else if (X == 9 || X == 10 || X == 11){
        cout << "fall" << endl;
    }
    else if (X == 12 || X == 1 || X == 2){
        cout << "winter" << endl;
    }
}