f57

#include <iostream>
using namespace std;
int main() {
    int a;
    cin >> a;
    switch (a) {
    case 1:
    case 2:
    case 12:
        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 << "autumn";
        break;
    default:
        cout << "NO";
        break;
    }
}