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

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

	cout << ans << endl;
}