#include <iostream>

using namespace std;

int main() {

    int hh, mm;

    cin >> hh >> mm;

    int all = hh * 60 + mm;

    if (all >= 450 && all < 1020) 

{

        cout << "At School" << endl;

    } 

else 

{

        cout << "Off School" << endl;

    }

    return 0;

}