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