#include<iostream>
using namespace std;

int main ()
{
int hh,mm;
cin>>hh>>mm;
if (hh>=17)
    {
        cout<<"Off School";
    }
else if (hh>=7 && mm>=30 || hh>=8 && mm>= 0)
    {
        cout<<"At School";
    }
else cout<<"Off School";
}