import java.util.Scanner;

public class Main {
	public static void main(String[] args) throws Exception {
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		int a = sc.nextInt();
		int b = sc.nextInt();
		int c = sc.nextInt() + n;
		sc.close();

		if (a < b) {
			if (n * 2L + a - c < n) {
				System.out.println("Yes");
			} else {
				System.out.println("No");
			}
		} else {
			if (c - a < n) {
				System.out.println("Yes");
			} else {
				System.out.println("No");
			}
		}
	}
}