#include<stdio.h>
int a,b;
int main(){
	scanf("%d %d",&a,&b);
  	printf("%s",(a%2!=0&&b%2!=0)?"Yes":"No");
  	return 0;
}

### Prompt

Please provide a cpp coded solution to the problem described below:

You are given integers A and B, each between 1 and 3 (inclusive).

Determine if there is an integer C between 1 and 3 (inclusive) such that A \times B \times C is an odd number.

Constraints

* All values in input are integers.
* 1 \leq A, B \leq 3

Input

Input is given from Standard Input in the following format:


A B


Output

If there is an integer C between 1 and 3 that satisfies the condition, print `Yes`; otherwise, print `No`.

Examples

Input

3 1


Output

Yes


Input

1 2


Output

No


Input

2 2


Output

No

### Response

```cpp
#include<stdio.h>
int a,b;
int main(){
	scanf("%d %d",&a,&b);
  	printf("%s",(a%2!=0&&b%2!=0)?"Yes":"No");
  	return 0;
}

```