#include<bits/stdc++.h>
using namespace std;
int main()
{
  int hh,mm;
  cin>>hh>>mm;
  int t=hh*60+mm;
  if(hh>=17 || hh<7 || hh==7 && mm<30)
  {
    cout<<"Off School"<<"\n";
  }
  else
  {
  cout<<"At School"<<"\n";
  }
}