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.

1, 15, ['3571', 'D', '1249', 'g', '2843', '8589', 'R', '1161', '5653', '1821', 'w', 'b', 'i', 'c', '8247', '1397']
7428cibw128135651611R98583482g9421D1753

3, 3, ['x', 'v', 'p', '4337', '635', '8927', 'B']
p

3, 5, ['p', '8743', 'T', 'v', '313', 'n', 'd', 'B', '4851', '4389', 'U', 'h', '9955', 'R', 'd', 'V', 'M', '2761', 'J', '739', '5111']

313vT