Home

Contest: Task: Related: TaskA TaskC

Score : $200$ points

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.

Constraints

  • Each $S_i$ 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.

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.