//find the leap years
fn isLeapYear(n: int) {
	if (n % 400 == 0) return true;
	if (n % 100 == 0) return false;
	return n % 4 == 0;
}

//check for string reuse
{
	print isLeapYear(1999);
}

{
	print isLeapYear(2000);
}

{
	print isLeapYear(2004);
}