#include<iostream>
using namespace std;
int main()
{
int year;
bool isLeapYear;
cout<<"Enter the year:";
cin>>year;
isLeapYear=((year% 4==0&&year% 100!=0)||(year% 400==0));
if(isLeapYear)
cout<<year<<"is a leap year"<<endl;
else
cout<<year<<"is not a leap year"<<endl;
return 0;
}