答案

#include<iostream>
using namespace std;
int main() {
	int n;
	cin >> n;
	if ((n % 4 == 0 && n % 100 != 0) || n % 400 == 0) {
		cout << "Y" << endl;
	}
	else {
		cout << "N" << endl;
	}
	return 0;
}