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What will I learn?

StringsString manipulation

Statement

 Goal

Your goal is to count how many fish you have caught.
You are fishing in a water with an altitude of H
and a length of W and a current
pointing towards currentD with a very cheap fishing rod,
It is broken by touching any garbage, but at least it is used to catch fish.

INFORMATION:
* ".": water
* ">": a fish that goes to the right
* "<": a fish that goes to the left
* "|": fishing rod
* "C": hook. If it is just below the fishing rod or if it is the first "C" in the first row and there is no "|", it is considered to be the fishing rod, otherwise it is garbage.
* any other character: garbage

RULES:
1. Fishing rod:
* Fish can touch any part of your fishing rod to be caught
* If the trash touches the fishing rod it breaks (you can not fish anymore)
* If garbage and fish touch the fishing rod at the same time, fish is caught (and then the rod breaks)
* There always has to be a hook

2. Fish:
* Fish can move in both directions regardless of the current
* If two fish collide with each other, they get stuck (they stop moving and disappear)
* The fish die when colliding with the garbage (the fish and garbage stop moving and disappear)

3. Garbage:
* Trash moves in the direction of the current
Input
Line1: H Height
Line2: W Width
Line3: currentD current direction
H Lines: row string
Output
the number of fish caught
Constraints
0<H<256
0<W<256
currentD = LEFT(right to left) or RIGHT(left to right)
Example
Input
7
11
LEFT
.....|.....
...>.|....<
..><.|...#.
.>.<.|....<
.....|.<..<
.....C.....
...........
Output
2
Solve it

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