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: 15, 16, ['1107', '1863', 'L', '6929', '9633', '9399', '4479', 'V', 'o', 'x', '1065', '7955', 'i', '7413', '6237', 'S', '1461', '8481', '7143', 's', 'U', 'd']

A: S7326
****
Q: 3, 3, ['5819', '3317', '451', '5811']

A: 154
****
Q: 10, 12, ['5905', 's', 'b', '3203', 'C', 'q', 'V', '7843', 'l', '7707', '771', '9435', '7893', '2395', 'H', 'G']

A:
53491777077
****