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

import java.util.Scanner;

public class round1_p1
{
	public static void main(String[] main)
	{
		Scanner scanner = new Scanner(System.in);
		boolean leap;
		int year = scanner.nextInt();
		
		if (year % 4 != 0) leap = false;
		else if (year % 100 == 0)
		{
			if(year % 400 == 0) leap = true;
			else leap = false;
		}
		else leap = true;
		
		if(leap == true) System.out.println("yes");
		else System.out.println("no");
		
		return;
	}
}