题解

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