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.

2, 2, ['G', 'S']
S

1, 5, ['d', 'p', 'B', 'i', '5865', '4569']
5685iBpd

6, 17, ['5297', 'M', '2517', 'l', '4809', 'i', '1725', 'f', '8857', 'o', '1569', 'E', '9325', '1549', 'T', '593', '221', '41', '5977', 'Q', '1539', '2981', '1045', '1739']

122395T94515239E9651o7588f5271i