A Student's Dream

import java.io.*;
import java.util.*;

public class Main {
    static boolean ok(int g, int b) {
        return b >= g - 1 && b <= 2 * g + 2;
    }

    public static void main(String[] args) throws Exception {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

        StringTokenizer st = new StringTokenizer(br.readLine());
        int gl = Integer.parseInt(st.nextToken());
        int gr = Integer.parseInt(st.nextToken());

        st = new StringTokenizer(br.readLine());
        int bl = Integer.parseInt(st.nextToken());
        int brf = Integer.parseInt(st.nextToken());

        boolean possible =
                ok(gl, brf) ||
                ok(gr, bl);

        System.out.print(possible ? "YES" : "NO");
    }
}