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, 7, ['4177', 'T', 'Q', '915', '7823', 'm', '6453']

Answer: 3546m3287519QT7714


Question: 5, 6, ['7565', '6525', '7421', 'u', '303', '1815', '273', '6725', 'i']

Answer: 5181303


Question: 16, 16, ['5451', '5175', '2681', 't', 'i', 'a', '235', 'g', '35', 's', 'U', 'U', '6501', '7401', '3461', '7255', 'l', '2733', '7917', '1675', '3099', 'g', 'w', 'H', 'C', '4279', 'o']

Answer:
5527