import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int x = sc.nextInt();
		int y = sc.nextInt();
		int sum = 0;
		if(y % 2 != 0) {
			System.out.println("No");
		} else {
			for(int i = 0; i <= x; i++) {
				sum = i * 2 + (x - i) * 4;
				if(sum == y) {
					System.out.println("Yes");
					return;
				}
			}
			System.out.println("No");
		}
	}
} import java.util.Scanner; Scanner 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 sum = 0;
		if(y % 2 != 0) {
			System.out.println("No");
		} else {
			for(int i = 0; i <= x; i++) {
				sum = i * 2 + (x - i) * 4;
				if(sum == y) {
					System.out.println("Yes");
					return;
				}
			}
			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 sum = 0;
		if(y % 2 != 0) {
			System.out.println("No");
		} else {
			for(int i = 0; i <= x; i++) {
				sum = i * 2 + (x - i) * 4;
				if(sum == y) {
					System.out.println("Yes");
					return;
				}
			}
			System.out.println("No");
		}
	} main {
		Scanner sc = new Scanner(System.in);
		int x = sc.nextInt();
		int y = sc.nextInt();
		int sum = 0;
		if(y % 2 != 0) {
			System.out.println("No");
		} else {
			for(int i = 0; i <= x; i++) {
				sum = i * 2 + (x - i) * 4;
				if(sum == y) {
					System.out.println("Yes");
					return;
				}
			}
			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 sum = 0; sum 0 if(y % 2 != 0) {
			System.out.println("No");
		} else {
			for(int i = 0; i <= x; i++) {
				sum = i * 2 + (x - i) * 4;
				if(sum == y) {
					System.out.println("Yes");
					return;
				}
			}
			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" {
			for(int i = 0; i <= x; i++) {
				sum = i * 2 + (x - i) * 4;
				if(sum == y) {
					System.out.println("Yes");
					return;
				}
			}
			System.out.println("No");
		} for(int i = 0; i <= x; i++) {
				sum = i * 2 + (x - i) * 4;
				if(sum == y) {
					System.out.println("Yes");
					return;
				}
			} int i = 0; int i = 0; i 0 i <= x i x i++ i++ i {
				sum = i * 2 + (x - i) * 4;
				if(sum == y) {
					System.out.println("Yes");
					return;
				}
			} {
				sum = i * 2 + (x - i) * 4;
				if(sum == y) {
					System.out.println("Yes");
					return;
				}
			} sum = i * 2 + (x - i) * 4 sum i * 2 + (x - i) * 4 i * 2 i 2 (x - i) * 4 (x - i) x i 4 if(sum == y) {
					System.out.println("Yes");
					return;
				} sum == y sum y {
					System.out.println("Yes");
					return;
				} System.out.println("Yes") System.out.println System.out System System.out "Yes" return; 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 sum = 0;
		if(y % 2 != 0) {
			System.out.println("No");
		} else {
			for(int i = 0; i <= x; i++) {
				sum = i * 2 + (x - i) * 4;
				if(sum == y) {
					System.out.println("Yes");
					return;
				}
			}
			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 sum = 0;
		if(y % 2 != 0) {
			System.out.println("No");
		} else {
			for(int i = 0; i <= x; i++) {
				sum = i * 2 + (x - i) * 4;
				if(sum == y) {
					System.out.println("Yes");
					return;
				}
			}
			System.out.println("No");
		}
	}
} Main
import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int x = sc.nextInt();
		int y = sc.nextInt();
		int sum = 0;
		if(y % 2 != 0) {
			System.out.println("No");
		} else {
			for(int i = 0; i <= x; i++) {
				sum = i * 2 + (x - i) * 4;
				if(sum == y) {
					System.out.println("Yes");
					return;
				}
			}
			System.out.println("No");
		}
	}
}
