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.

[EX Q]: 3, 22, ['5347', 'e', 'a', 'i', 'o', 'W', '3101', '5381', 'u', '8799', 'r', '7559', '9931', 'V', 'l', 'v', 's', 'q', 'C', 'o', '7803', 'c']
[EX A]: c3087oCqsvlV13999557r9978u18351013Woia

[EX Q]: 3, 6, ['p', 'H', '2775', '2567', '7787', 'D', '3807', '4817', '5399']
[EX A]: D787776525772

[EX Q]: 2, 24, ['H', '9171', 'w', '2463', '9459', 'y', '5903', '1113', 'D', '8155', '4349', 'j', '9933', '7429', 'P', '6443', 'K', '8411', 'i', 'K', '8359', '2653', 'I', 'G']
[EX A]:
GI35629538Ki1148K3446P92473399j94345518D31113095y95493642w1719