CodeForces #4A Watermelon [java]

import java.util.Scanner;

public class Watermelon_4A {

	public static void main(String[] args) {
		Scanner scan = new Scanner(System.in);
		int n = scan.nextInt();
		if (n <= 2)
			System.out.println("NO");
		else {
			if (n % 2 == 0)
				System.out.println("YES");
			else
				System.out.println("NO");
		}
		scan.close();
	}
}