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: 7, 8, ['1601', 'M', '4289', 'n', 'r', '8973', 'F', 'Y', 'v', '3357']

Answer: YF


Question: 6, 7, ['8123', 'G', '4941', 'Z', 'i', 'T', '3335']

Answer: 5333T


Question: 7, 15, ['9527', '5207', 'E', 'J', '8363', 'a', 'Z', '4099', '1395', 'b', 'w', '1553', '4267', '2675', 'Q', '179']

Answer:
Q576276243551wb59319904Z