Problem Statement

You are given four strings S_1, S_2, S_3, and S_4.
Determine whether this sequence of strings has one of each of the following: H, 2B, 3B, and HR.
Here, it is guaranteed that every S_i is H, 2B, 3B, or HR.

Input

Input is given from Standard Input in the following format:
S_1
S_2
S_3
S_4

Output

If the given sequence of strings has one of each of H, 2B, 3B, and HR, print Yes.
Otherwise, print No.

Constraints

• Each S_i is H, 2B, 3B, or HR.

Sample Input 1

3B
HR
2B
H

Sample Output 1

Yes

We have one of each of H, 2B, 3B, and HR.

Sample Input 2

2B
3B
HR
3B

Sample Output 2

No

We have no H.

见题面 Input 部分

见题面 Output 部分