//79.cpp
#include <iostream>
using namespace std;
int main()
{
int a,b;
cin >> a;
if(a%4 == 0 && a%100 != 0 || a%400 == 0)
cout << "The year " << a << " is a leap year." << endl;
else
cout << "The year " << a << " is not a leap year." << endl;
return 0;
}