1662. Check If Two String Arrays are Equivalent

class Solution:
    def arrayStringsAreEqual(self, word1: List[str], word2: List[str]) -> bool:
        i = j = x = y = 0
        while i < len(word1) and j < len(word2):
            if word1[i][x] != word2[j][y]:
                return False
            x, y = x + 1, y + 1
            if x == len(word1[i]):
                x, i = 0, i + 1
            if y == len(word2[j]):
                y, j = 0, j + 1
        return i == len(word1) and j == len(word2)