#include<bits/stdc++.h> #define ac int using namespace std; bool check(ac y){ return y%4==0&&y%100!=0||y%400==0; } int main() { //freopen("year.in","r",stdin); //freopen("year.out","w",stdout); ac year; cin>>year; if(check(year)) cout<<"Y"; else cout<<"N"; //fclose(stdin);fclose(stdout); return 0; }