// 2019 IUSB Programming Competition
// Round 1 Problem 1
// Find out if a year is leap or not
// Solution by Liguo Yu

#include <iostream>
using namespace std;

int main()
{
	int year;
	cin >> year;

	if (year % 400 == 0)
	{
        cout << "yes";
	}
	
	else if (year % 4 == 0 && year % 100 != 0)
	{
		cout << "yes";
	}

	else
	{
		cout << "no";
	}

	return 0;
}