import 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");
    }else if(y-x*2<=x*2 && y>=x*2){
//  }else if(y<=x*4 && y>=x*2){
    	System.out.println("Yes");
    }else{
        System.out.println("No");
    }
}
} import java.util.*; util.* java 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");
    }else if(y-x*2<=x*2 && y>=x*2){
//  }else if(y<=x*4 && y>=x*2){
    	System.out.println("Yes");
    }else{
        System.out.println("No");
    }
}
} 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");
    }else if(y-x*2<=x*2 && y>=x*2){
//  }else if(y<=x*4 && y>=x*2){
    	System.out.println("Yes");
    }else{
        System.out.println("No");
    }
} main {
    
    Scanner sc = new Scanner(System.in);
    int x = sc.nextInt();
    int y = sc.nextInt();
 
    if(y%2!=0){
        System.out.println("No");
    }else if(y-x*2<=x*2 && y>=x*2){
//  }else if(y<=x*4 && y>=x*2){
    	System.out.println("Yes");
    }else{
        System.out.println("No");
    }
} 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");
    }else if(y-x*2<=x*2 && y>=x*2){
//  }else if(y<=x*4 && y>=x*2){
    	System.out.println("Yes");
    }else{
        System.out.println("No");
    } y%2!=0 y%2 y 2 0 {
        System.out.println("No");
    } System.out.println("No") System.out.println System.out System System.out "No" if(y-x*2<=x*2 && y>=x*2){
//  }else if(y<=x*4 && y>=x*2){
    	System.out.println("Yes");
    }else{
        System.out.println("No");
    } y-x*2<=x*2 && y>=x*2 y-x*2<=x*2 y-x*2 y x*2 x 2 x*2 x 2 y>=x*2 y x*2 x 2 {
//  }else if(y<=x*4 && y>=x*2){
    	System.out.println("Yes");
    } System.out.println("Yes") System.out.println System.out System System.out "Yes" {
        System.out.println("No");
    } 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 sc = new Scanner(System.in);
    int x = sc.nextInt();
    int y = sc.nextInt();
 
    if(y%2!=0){
        System.out.println("No");
    }else if(y-x*2<=x*2 && y>=x*2){
//  }else if(y<=x*4 && y>=x*2){
    	System.out.println("Yes");
    }else{
        System.out.println("No");
    }
}
} 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");
    }else if(y-x*2<=x*2 && y>=x*2){
//  }else if(y<=x*4 && y>=x*2){
    	System.out.println("Yes");
    }else{
        System.out.println("No");
    }
}
} Main
import 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");
    }else if(y-x*2<=x*2 && y>=x*2){
//  }else if(y<=x*4 && y>=x*2){
    	System.out.println("Yes");
    }else{
        System.out.println("No");
    }
}
}
