#include<bits/stdc++.h>
using namespace std;
int main(){
	int a;
	cin>>a;
	if(a%400==0)cout<<"Y";
	else if(a%100==0)cout<<'N';
	else if(a%4==0)cout<<'Y';
	else cout<<"N";
	return 0;
}

#include<bits/stdc++.h> using namespace std; int n,mx=0; int a; int main(){ cin>>n; for(int i=1;i<=n;i++){ cin>>a; mx=max(mx,a); } cout<<mx<<"\n"; }

#include<iostream>
#include<iomanip>
using namespace std;
int a,b,c;
int main(){
	cin>>a>>b>>c;
	if(a+b>c&&a+c>b&&b+c>a) cout<<"yes"<<"\n";
	else cout<<"no"<<"\n";
        return 0;
}

#include <iostream>
using namespace std;

int main()
{
	int a;
	cin >> a;
	if(a % 4 == 0) cout << 'Y' << endl;
	else cout << 'N' << endl;
	return 0;
}

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

#include <iostream>
using namespace std;

int main()
{
	int a;
	cin >> a;
	if(a % 4 == 0) cout << 'Y' << endl;
	else cout << 'N' << endl;
	return 0;
}

#include <iostream>
using namespace std;

int main()
{
	int a;
	cin >> a;
	if(a % 4 == 0) cout << 'Y' << endl;
	else cout << 'N' << endl;
	return 0;
}

反骨的我偏要一个if写完

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

#include<iostream>
#include<cstdio>
using namespace std;
int main()
{
    int n;
    scanf("%d",&n);
    if (n%4==0&&n%100!=0||n%400==0&&n%3200!=0) printf("Y");
    else printf("N");
    return 0;
}

#include <bits/stdc++.h>
using namespace std;
int main(int argc, char **argv){
	int n;
	cin >> n;
	if (n % 4 == 0 && n % 100 != 0){
		cout << "Y";
	}else if (n % 400 == 0){
		cout << "Y";
	}else{
		cout << "N";
	}
	return 0;
}

#include <bits/stdc++.h>
using namespace std;
int n;
int main(){
	cin>>n;
	if(n%4!=0) cout<<"N";
	else{
		if(n%100==0&&n%400!=0) cout<<"N";
		else cout<<"Y";
	}
	return 0;
}
//简单分支