Problem Statement

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.

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.

Constraints

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

Sample Input 1

3 1

Sample Output 1

Yes

Let $C = 3. Then, A \times B \times C = 3 \times 1 \times 3 = 9,$ which is an odd number.

Sample Input 2

1 2

Sample Output 2

No

Sample Input 3

2 2

Sample Output 3

No

见题面 Input 部分

见题面 Output 部分