class Solution: def createTargetArray(self, nums, index): result = [] for x in range(len(nums)): result.insert(index[x], nums[x]) return result s = Solution() print("Expected: [0, 4, 1, 3, 2]") print("Got:", s.createTargetArray([0, 1, 2, 3, 4], [0, 1, 2, 2, 1]))