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    "https://leetcode.com/problems/complex-number-multiplication\n",
    "\n",
    "\n",
    "Runtime: 28 ms, faster than 80.19% of Python3 online submissions for Complex Number Multiplication.\n",
    "Memory Usage: 14.3 MB, less than 54.31% of Python3 online submissions for Complex Number Multiplication.\n",
    "\n",
    "\n",
    "```python\n",
    "class Solution:\n",
    "    def complexNumberMultiply(self, a: str, b: str) -> str:\n",
    "        #6:03\n",
    "        def parse(s):\n",
    "            lists = s.split(\"+\")\n",
    "            A = lists[0]\n",
    "            B = lists[1].replace(\"i\", \"\")\n",
    "            return int(A), int(B)\n",
    "        a1, a2 = parse(a)\n",
    "        b1, b2 = parse(b)\n",
    "        #a1 * b1 + (a1 * b2) + (a2 * b1) + ((a2 * b2)*-1)\n",
    "        return str(a1 * b1 + ((a2 * b2)*(-1))) +\"+\"+ str((a1 * b2) + (a2 * b1)) + \"i\"\n",
    "        #6:11\n",
    "```"
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