1
class Solution:
2
    def canTransform(self, start: str, end: str) -> bool:
3
        def chars(s):
4
            for i, c in enumerate(s):
5
                if c != "X":
6
                    yield i, c
7

8
            yield -1, " "
9

10
        for (startI, startC), (endI, endC) in zip(chars(start), chars(end)):
11
            if (
12
                startC != endC
13
                or (startC == "L" and startI < endI)
14
                or (startC == "R" and startI > endI)
15
            ):
16
                return False
17

18
        return True