#include <stdio.h>
int main(void){
    int x,y;
    scanf("%d", &x);
    scanf("%d", &y);
    if(x * 2 > y || x * 4 < y){
        printf("No\n");
    }else if(y % 2 != 0){
        printf("No\n");
    }else{
        printf("Yes\n");
    }
    return 0;
}