p03260 AtCoder Beginner Contest 109 - ABC333
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
```python
print("Yes" if all(int(i) % 2 != 0 for i in input().split()) else "No")
```