import java.util.*;
 
class Main {
    public static void main(String[] args) {
 		Scanner sc = new Scanner(System.in);
		int intKazu = sc.nextInt();
     	int intAshi = sc.nextInt();

// intKazu 3
// intAshi 6,8,10,12
// intKazu 5
// intAshi 10,12,14,16,18,20
	
		int OKflag = 0;
        for(int i=0;i<(intKazu+1);i++){
			if ( ((intKazu * 2) + (i *2)) == intAshi ) {
			OKflag = 1;
			}
        }
    
  
		if ( OKflag == 1 ) {
	        System.out.println("Yes"); 
		} else {
	        System.out.println("No");
		}
	}
} import java.util.*; util.* java class Main {
    public static void main(String[] args) {
 		Scanner sc = new Scanner(System.in);
		int intKazu = sc.nextInt();
     	int intAshi = sc.nextInt();

// intKazu 3
// intAshi 6,8,10,12
// intKazu 5
// intAshi 10,12,14,16,18,20
	
		int OKflag = 0;
        for(int i=0;i<(intKazu+1);i++){
			if ( ((intKazu * 2) + (i *2)) == intAshi ) {
			OKflag = 1;
			}
        }
    
  
		if ( OKflag == 1 ) {
	        System.out.println("Yes"); 
		} else {
	        System.out.println("No");
		}
	}
} Main public static void main(String[] args) {
 		Scanner sc = new Scanner(System.in);
		int intKazu = sc.nextInt();
     	int intAshi = sc.nextInt();

// intKazu 3
// intAshi 6,8,10,12
// intKazu 5
// intAshi 10,12,14,16,18,20
	
		int OKflag = 0;
        for(int i=0;i<(intKazu+1);i++){
			if ( ((intKazu * 2) + (i *2)) == intAshi ) {
			OKflag = 1;
			}
        }
    
  
		if ( OKflag == 1 ) {
	        System.out.println("Yes"); 
		} else {
	        System.out.println("No");
		}
	} main {
 		Scanner sc = new Scanner(System.in);
		int intKazu = sc.nextInt();
     	int intAshi = sc.nextInt();

// intKazu 3
// intAshi 6,8,10,12
// intKazu 5
// intAshi 10,12,14,16,18,20
	
		int OKflag = 0;
        for(int i=0;i<(intKazu+1);i++){
			if ( ((intKazu * 2) + (i *2)) == intAshi ) {
			OKflag = 1;
			}
        }
    
  
		if ( OKflag == 1 ) {
	        System.out.println("Yes"); 
		} else {
	        System.out.println("No");
		}
	} Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int intKazu = sc.nextInt(); intKazu sc.nextInt() sc.nextInt sc int intAshi = sc.nextInt(); intAshi sc.nextInt() sc.nextInt sc int OKflag = 0; OKflag 0 for(int i=0;i<(intKazu+1);i++){
			if ( ((intKazu * 2) + (i *2)) == intAshi ) {
			OKflag = 1;
			}
        } int i=0; int i=0; i 0 i<(intKazu+1) i (intKazu+1) intKazu 1 i++ i++ i {
			if ( ((intKazu * 2) + (i *2)) == intAshi ) {
			OKflag = 1;
			}
        } {
			if ( ((intKazu * 2) + (i *2)) == intAshi ) {
			OKflag = 1;
			}
        } if ( ((intKazu * 2) + (i *2)) == intAshi ) {
			OKflag = 1;
			} ((intKazu * 2) + (i *2)) == intAshi ((intKazu * 2) + (i *2)) (intKazu * 2) intKazu 2 (i *2) i 2 intAshi {
			OKflag = 1;
			} OKflag = 1 OKflag 1 if ( OKflag == 1 ) {
	        System.out.println("Yes"); 
		} else {
	        System.out.println("No");
		} OKflag == 1 OKflag 1 {
	        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
import java.util.*;
 
class Main {
    public static void main(String[] args) {
 		Scanner sc = new Scanner(System.in);
		int intKazu = sc.nextInt();
     	int intAshi = sc.nextInt();

// intKazu 3
// intAshi 6,8,10,12
// intKazu 5
// intAshi 10,12,14,16,18,20
	
		int OKflag = 0;
        for(int i=0;i<(intKazu+1);i++){
			if ( ((intKazu * 2) + (i *2)) == intAshi ) {
			OKflag = 1;
			}
        }
    
  
		if ( OKflag == 1 ) {
	        System.out.println("Yes"); 
		} else {
	        System.out.println("No");
		}
	}
}