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]: 2, 4, ['5983', 'I', '9531', 'U', 'P', '1383', 'Y']
[A]: U1359I


[Q]: 1, 2, ['3303', '6127']
[A]: 72163033


[Q]: 21, 29, ['b', '2693', 'g', 'o', 'N', '6261', 'Y', '2075', '1571', 'e', '7137', 'W', 'K', '6301', '6591', '6735', 'a', '3353', '833', '3399', 'c', '3671', '323', 'V', 'q', 'y', '6125', '3085', '2963', '7363']
[A]:
369258035216yqV3231763c