#include<iostream>
using namespace std ;
int main()
{
  int long a;
  cin>>a;
  if(a<1|| a>1e9)
  else if((a%==0 && a%100!=0) || (a%400==0))
  {
      cout<<"Leap year";
      
  }
  else
  {
      cout<<"not leap year";
  }
  return 0;
}