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: 2, 5, ['n', '8897', '6611', '2857', 'p']

Answer: p758211667988


Question: 6, 27, ['p', '5559', 'b', '1087', '2763', 'j', 'U', 'N', '7099', '3001', 'x', 'Y', '1631', '2729', '7503', 'I', '8149', 'm', 'M', 'n', 'H', 'F', 'E', '9513', '8697', 'H', 'e', '5691']

Answer: eH79683159EFHnMm9418I305792721361Yx10039907NUj


Question: 1, 9, ['7793', '9505', 'S', '1291', 'X', '1921', '1535', 'j', 'o', 'x', '4467', '245', 'b']

Answer:
oj53511291X1921S50593977