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();
      	int num = 0;
      	for(int cnt = x * 2;cnt >= 0;cnt -= 2){
        	if(cnt + num == y){
            	System.out.println("Yes");
              	System.exit(0);
            }
          	num += 4;
        }
      	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();
      	int num = 0;
      	for(int cnt = x * 2;cnt >= 0;cnt -= 2){
        	if(cnt + num == y){
            	System.out.println("Yes");
              	System.exit(0);
            }
          	num += 4;
        }
      	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();
      	int num = 0;
      	for(int cnt = x * 2;cnt >= 0;cnt -= 2){
        	if(cnt + num == y){
            	System.out.println("Yes");
              	System.exit(0);
            }
          	num += 4;
        }
      	System.out.println("No");
	} main {
		Scanner sc = new Scanner(System.in);
		int x = sc.nextInt();
      	int y = sc.nextInt();
      	int num = 0;
      	for(int cnt = x * 2;cnt >= 0;cnt -= 2){
        	if(cnt + num == y){
            	System.out.println("Yes");
              	System.exit(0);
            }
          	num += 4;
        }
      	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 int num = 0; num 0 for(int cnt = x * 2;cnt >= 0;cnt -= 2){
        	if(cnt + num == y){
            	System.out.println("Yes");
              	System.exit(0);
            }
          	num += 4;
        } int cnt = x * 2; int cnt = x * 2; cnt x * 2 x 2 cnt >= 0 cnt 0 cnt -= 2 cnt -= 2 cnt 2 {
        	if(cnt + num == y){
            	System.out.println("Yes");
              	System.exit(0);
            }
          	num += 4;
        } {
        	if(cnt + num == y){
            	System.out.println("Yes");
              	System.exit(0);
            }
          	num += 4;
        } if(cnt + num == y){
            	System.out.println("Yes");
              	System.exit(0);
            } cnt + num == y cnt + num cnt num y {
            	System.out.println("Yes");
              	System.exit(0);
            } System.out.println("Yes") System.out.println System.out System System.out "Yes" System.exit(0) System.exit System 0 num += 4 num 4 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();
      	int num = 0;
      	for(int cnt = x * 2;cnt >= 0;cnt -= 2){
        	if(cnt + num == y){
            	System.out.println("Yes");
              	System.exit(0);
            }
          	num += 4;
        }
      	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();
      	int num = 0;
      	for(int cnt = x * 2;cnt >= 0;cnt -= 2){
        	if(cnt + num == y){
            	System.out.println("Yes");
              	System.exit(0);
            }
          	num += 4;
        }
      	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();
      	int num = 0;
      	for(int cnt = x * 2;cnt >= 0;cnt -= 2){
        	if(cnt + num == y){
            	System.out.println("Yes");
              	System.exit(0);
            }
          	num += 4;
        }
      	System.out.println("No");
	}
}