

import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);

		int x = sc.nextInt();
		int y = sc.nextInt();

		String ans = "Yes";

		if (y % 2 != 0) {
			ans = "No";
		} else if (y < 2 * x || 4 * x < y) {
			ans = "No";
		}

		System.out.println(ans);
	}
} import java.util.Scanner; Scanner java.util public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);

		int x = sc.nextInt();
		int y = sc.nextInt();

		String ans = "Yes";

		if (y % 2 != 0) {
			ans = "No";
		} else if (y < 2 * x || 4 * x < y) {
			ans = "No";
		}

		System.out.println(ans);
	}
} Main public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);

		int x = sc.nextInt();
		int y = sc.nextInt();

		String ans = "Yes";

		if (y % 2 != 0) {
			ans = "No";
		} else if (y < 2 * x || 4 * x < y) {
			ans = "No";
		}

		System.out.println(ans);
	} main {
		Scanner sc = new Scanner(System.in);

		int x = sc.nextInt();
		int y = sc.nextInt();

		String ans = "Yes";

		if (y % 2 != 0) {
			ans = "No";
		} else if (y < 2 * x || 4 * x < y) {
			ans = "No";
		}

		System.out.println(ans);
	} Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int x = sc.nextInt(); x sc.nextInt() sc.nextInt sc int y = sc.nextInt(); y sc.nextInt() sc.nextInt sc String ans = "Yes"; ans "Yes" if (y % 2 != 0) {
			ans = "No";
		} else if (y < 2 * x || 4 * x < y) {
			ans = "No";
		} y % 2 != 0 y % 2 y 2 0 {
			ans = "No";
		} ans = "No" ans "No" if (y < 2 * x || 4 * x < y) {
			ans = "No";
		} y < 2 * x || 4 * x < y y < 2 * x y 2 * x 2 x 4 * x < y 4 * x 4 x y {
			ans = "No";
		} ans = "No" ans "No" System.out.println(ans) System.out.println System.out System System.out ans String[] args args public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);

		int x = sc.nextInt();
		int y = sc.nextInt();

		String ans = "Yes";

		if (y % 2 != 0) {
			ans = "No";
		} else if (y < 2 * x || 4 * x < y) {
			ans = "No";
		}

		System.out.println(ans);
	}
} public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);

		int x = sc.nextInt();
		int y = sc.nextInt();

		String ans = "Yes";

		if (y % 2 != 0) {
			ans = "No";
		} else if (y < 2 * x || 4 * x < y) {
			ans = "No";
		}

		System.out.println(ans);
	}
} Main


import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);

		int x = sc.nextInt();
		int y = sc.nextInt();

		String ans = "Yes";

		if (y % 2 != 0) {
			ans = "No";
		} else if (y < 2 * x || 4 * x < y) {
			ans = "No";
		}

		System.out.println(ans);
	}
}
