#include <iostream>
#include <algorithm>

using namespace std;

int main() {
	ios_base::sync_with_stdio(0); cin.tie(NULL);
	
	int n; cin >> n;
	switch (n) {
		case 12:
		case 1:
		case 2: {
			cout << "winter";
			break;
		}
		case 3:
		case 4:
		case 5: {
			cout << "spring";
			break;
		}
		case 6:
		case 7:
		case 8: {
			cout << "summer";
			break;
		}
		case 9:
		case 10:
		case 11: {
			cout << "fall";
			break;
		}
	}
	
	return 0;
}