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class Solution:    def findRestaurant(self, list1: List[str], list2: List[str]) -> List[str]:        dic1 = {   }        dic2 = {   }        for i in range(len(list1)):            dic1[list1[i]] = i        for j in range(len(list2)):            dic2[list2[j]] = j        res = []        index_sum = {   }        for key, value in dic1.items():            if key in dic2:                index_sum[key] = dic1[key] + dic2[key]                min_index_sum = min(index_sum.values())        for key, value in index_sum.items():            if index_sum[key] == min_index_sum:                res.append(key)        return res