In this task, you are given inputs 'i', 'j', and A, where 'i' and 'j' are integers and A is a list. A list is shown by two brackets and comma-separated numbers and characters inside, like ['1', '12', 'l']. You need to concatenate all elements of A from the ith element to the jth element, and then reverse the resulting string. 'i' and 'j' will be non-negative, and will always have a value less than the length of A. 'i' will always be less than 'j'. Perform the operations in order, i.e., do not reverse first and then concatenate.
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Question: 1, 3, ['2217', 'i', '6309', '6299', 'z']

Answer: 9036i7122


Question: 1, 3, ['7635', 'c', 'h', 'D', 'K', '7235', 'e']

Answer: hc5367


Question: 5, 6, ['q', 'L', 'f', '391', '7601', '2925', 'i', 'C', '4787']

Answer:
52921067