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