#include <iostream>

 using namespace std;

 int main(){

  int h,m;

cin>>h>>m;

if((h>=17)||(h<7))

cout<<"Off School"<<endl;

else if((h=7)&&(m<30))  

cout<<"Off School"<<endl;

  else

  cout<<"At School"<<endl;

  return 0;

 }

else if((h=7)&&(m<30)) 

h=7改成h==7