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.

[Q]: 9, 14, ['d', '7259', 'A', 'U', '7005', 'P', '8215', '8925', 'e', 'x', '1265', 'H', '4075', 'J', 'G']
[A]: J5704H5621xe


[Q]: 10, 13, ['D', 'A', '4221', '7301', '1937', 'r', '5105', 'q', 'F', 'j', '9441', '6391', '7081', 'l', '6569', 'i', '8871', '5985']
[A]: 180719361449j


[Q]: 12, 20, ['6213', 'F', '853', '3603', '3531', '6013', '5241', 'N', '4067', '5263', 'D', 'f', '2609', '3137', '3213', '3325', '6765', '2939', 'B', '9823', 'q', '8961', 'S', '4091', 'O', 'F', '5975', '4213']
[A]:
3289B939256765233312373139062f