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