#include<iostream>
#include<string>
#include<algorithm>
#include<cctype>
#include<set>
#include<bitset>
#include<math.h>
#include<map>
#include<queue>
using namespace std;

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