import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner tan = new Scanner(System.in);
        int a,l,j,p=0;
        a=tan.nextInt();
        l=tan.nextInt();
        if(l%2==0 && (a*2<=l && a*4>=l))
            System.out.println("Yes");
        else
            System.out.println("No");
    }
} import java.util.Scanner; Scanner java.util public class Main {
    public static void main(String[] args) {
        Scanner tan = new Scanner(System.in);
        int a,l,j,p=0;
        a=tan.nextInt();
        l=tan.nextInt();
        if(l%2==0 && (a*2<=l && a*4>=l))
            System.out.println("Yes");
        else
            System.out.println("No");
    }
} Main public static void main(String[] args) {
        Scanner tan = new Scanner(System.in);
        int a,l,j,p=0;
        a=tan.nextInt();
        l=tan.nextInt();
        if(l%2==0 && (a*2<=l && a*4>=l))
            System.out.println("Yes");
        else
            System.out.println("No");
    } main {
        Scanner tan = new Scanner(System.in);
        int a,l,j,p=0;
        a=tan.nextInt();
        l=tan.nextInt();
        if(l%2==0 && (a*2<=l && a*4>=l))
            System.out.println("Yes");
        else
            System.out.println("No");
    } Scanner tan = new Scanner(System.in); tan new Scanner(System.in) int a a l l j j p=0; p 0 a=tan.nextInt() a tan.nextInt() tan.nextInt tan l=tan.nextInt() l tan.nextInt() tan.nextInt tan if(l%2==0 && (a*2<=l && a*4>=l))
            System.out.println("Yes");
        else
            System.out.println("No"); l%2==0 && (a*2<=l && a*4>=l) l%2==0 l%2 l 2 0 (a*2<=l && a*4>=l) a*2<=l a*2 a 2 l a*4>=l a*4 a 4 l System.out.println("Yes") System.out.println System.out System System.out "Yes" System.out.println("No") System.out.println System.out System System.out "No" String[] args args public class Main {
    public static void main(String[] args) {
        Scanner tan = new Scanner(System.in);
        int a,l,j,p=0;
        a=tan.nextInt();
        l=tan.nextInt();
        if(l%2==0 && (a*2<=l && a*4>=l))
            System.out.println("Yes");
        else
            System.out.println("No");
    }
} public class Main {
    public static void main(String[] args) {
        Scanner tan = new Scanner(System.in);
        int a,l,j,p=0;
        a=tan.nextInt();
        l=tan.nextInt();
        if(l%2==0 && (a*2<=l && a*4>=l))
            System.out.println("Yes");
        else
            System.out.println("No");
    }
} Main
import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner tan = new Scanner(System.in);
        int a,l,j,p=0;
        a=tan.nextInt();
        l=tan.nextInt();
        if(l%2==0 && (a*2<=l && a*4>=l))
            System.out.println("Yes");
        else
            System.out.println("No");
    }
}
