import java.util.*;

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

public class Main{
  public static void main(String[] args){
    Scanner scan = new Scanner(System.in);
    int a = scan.nextInt();
    int b = scan.nextInt();
    if ((b<2*a)||(b>4*a)||(b%2!=0)){
      System.out.println("No");
    }
    else{
      System.out.println("Yes");
    }
  }
}
