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();

        if ((y%2 != 0)) {
            System.out.println("No");
            return;
        }

        int diff = y - (x * 2);
        if( diff < 0 ) {
            System.out.println("No");
            return;
        }

        if ((diff / 2) > x) {
            System.out.println("No");
            return;
        }
        System.out.println("Yes");
    }
} 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();

        if ((y%2 != 0)) {
            System.out.println("No");
            return;
        }

        int diff = y - (x * 2);
        if( diff < 0 ) {
            System.out.println("No");
            return;
        }

        if ((diff / 2) > x) {
            System.out.println("No");
            return;
        }
        System.out.println("Yes");
    }
} Main public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int x = sc.nextInt();
        int y = sc.nextInt();

        if ((y%2 != 0)) {
            System.out.println("No");
            return;
        }

        int diff = y - (x * 2);
        if( diff < 0 ) {
            System.out.println("No");
            return;
        }

        if ((diff / 2) > x) {
            System.out.println("No");
            return;
        }
        System.out.println("Yes");
    } main {
        Scanner sc = new Scanner(System.in);
        int x = sc.nextInt();
        int y = sc.nextInt();

        if ((y%2 != 0)) {
            System.out.println("No");
            return;
        }

        int diff = y - (x * 2);
        if( diff < 0 ) {
            System.out.println("No");
            return;
        }

        if ((diff / 2) > x) {
            System.out.println("No");
            return;
        }
        System.out.println("Yes");
    } 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 if ((y%2 != 0)) {
            System.out.println("No");
            return;
        } (y%2 != 0) y%2 y 2 0 {
            System.out.println("No");
            return;
        } System.out.println("No") System.out.println System.out System System.out "No" return; int diff = y - (x * 2); diff y - (x * 2) y (x * 2) x 2 if( diff < 0 ) {
            System.out.println("No");
            return;
        } diff < 0 diff 0 {
            System.out.println("No");
            return;
        } System.out.println("No") System.out.println System.out System System.out "No" return; if ((diff / 2) > x) {
            System.out.println("No");
            return;
        } (diff / 2) > x (diff / 2) diff 2 x {
            System.out.println("No");
            return;
        } System.out.println("No") System.out.println System.out System System.out "No" return; System.out.println("Yes") System.out.println System.out System System.out "Yes" 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();

        if ((y%2 != 0)) {
            System.out.println("No");
            return;
        }

        int diff = y - (x * 2);
        if( diff < 0 ) {
            System.out.println("No");
            return;
        }

        if ((diff / 2) > x) {
            System.out.println("No");
            return;
        }
        System.out.println("Yes");
    }
} public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int x = sc.nextInt();
        int y = sc.nextInt();

        if ((y%2 != 0)) {
            System.out.println("No");
            return;
        }

        int diff = y - (x * 2);
        if( diff < 0 ) {
            System.out.println("No");
            return;
        }

        if ((diff / 2) > x) {
            System.out.println("No");
            return;
        }
        System.out.println("Yes");
    }
} 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();

        if ((y%2 != 0)) {
            System.out.println("No");
            return;
        }

        int diff = y - (x * 2);
        if( diff < 0 ) {
            System.out.println("No");
            return;
        }

        if ((diff / 2) > x) {
            System.out.println("No");
            return;
        }
        System.out.println("Yes");
    }
}