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: 3, 6, ['p', 'H', '2775', '2567', '7787', 'D', '3807', '4817', '5399']

Answer: D787776525772


Question: 3, 6, ['e', 'w', '503', '2677', '4099', 'F', '4781', '3995', '8221', 'z', '6689', 'L', '3821', 'b', 'A', 'P', '4037', 'v', 'M', '3919']

Answer: F99047762305


Question: 1, 24, ['2409', '6993', 'E', 'N', '5111', 'T', 'P', '5385', '9951', 'Q', 'z', '3157', 'D', 'G', 'h', '7219', 'l', 'o', '9999', '5709', '4765', '6043', '7687', '9917', 'A', '3585']

Answer:
719978673406567490759999ol9127hGD7513zQ15995835PT1115NE39969042