Python 99% Faster
class Solution:\n    def strWithout3a3b(self, A: int, B: int) -> str:\n        a = list(A * \'a\')\n        b = list(B * \'b\')\n        ans = []\n        while
class Solution:\n    def strWithout3a3b(self, A: int, B: int) -> str:\n        a = list(A * \'a\')\n        b = list(B * \'b\')\n        ans = []\n        while True:\n            try: \n                ans.append(a.pop())\n                ans.append(b.pop())\n            except:\n                break\n        return ans + a + b
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