import java.util.*;
public class Main { 
    public static void main(String[] args) {
        Scanner sc=new Scanner(System.in);
        String o="No";
        int x=sc.nextInt();
        int y=sc.nextInt();
        if(y%2==0&&2*x<=y&&y<=4*x)o="Yes";
      System.out.println(o);
    }
    
} import java.util.*; util.* java public class Main { 
    public static void main(String[] args) {
        Scanner sc=new Scanner(System.in);
        String o="No";
        int x=sc.nextInt();
        int y=sc.nextInt();
        if(y%2==0&&2*x<=y&&y<=4*x)o="Yes";
      System.out.println(o);
    }
    
} Main public static void main(String[] args) {
        Scanner sc=new Scanner(System.in);
        String o="No";
        int x=sc.nextInt();
        int y=sc.nextInt();
        if(y%2==0&&2*x<=y&&y<=4*x)o="Yes";
      System.out.println(o);
    } main {
        Scanner sc=new Scanner(System.in);
        String o="No";
        int x=sc.nextInt();
        int y=sc.nextInt();
        if(y%2==0&&2*x<=y&&y<=4*x)o="Yes";
      System.out.println(o);
    } Scanner sc=new Scanner(System.in); sc new Scanner(System.in) String o="No"; o "No" int x=sc.nextInt(); x sc.nextInt() sc.nextInt sc int y=sc.nextInt(); y sc.nextInt() sc.nextInt sc if(y%2==0&&2*x<=y&&y<=4*x)o="Yes"; y%2==0&&2*x<=y&&y<=4*x y%2==0&&2*x<=y&&y<=4*x y%2==0 y%2 y 2 0 2*x<=y 2*x 2 x y y<=4*x y 4*x 4 x o="Yes" o "Yes" System.out.println(o) System.out.println System.out System System.out o String[] args args public class Main { 
    public static void main(String[] args) {
        Scanner sc=new Scanner(System.in);
        String o="No";
        int x=sc.nextInt();
        int y=sc.nextInt();
        if(y%2==0&&2*x<=y&&y<=4*x)o="Yes";
      System.out.println(o);
    }
    
} public class Main { 
    public static void main(String[] args) {
        Scanner sc=new Scanner(System.in);
        String o="No";
        int x=sc.nextInt();
        int y=sc.nextInt();
        if(y%2==0&&2*x<=y&&y<=4*x)o="Yes";
      System.out.println(o);
    }
    
} Main
import java.util.*;
public class Main { 
    public static void main(String[] args) {
        Scanner sc=new Scanner(System.in);
        String o="No";
        int x=sc.nextInt();
        int y=sc.nextInt();
        if(y%2==0&&2*x<=y&&y<=4*x)o="Yes";
      System.out.println(o);
    }
    
}