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]: 5, 6, ['7565', '6525', '7421', 'u', '303', '1815', '273', '6725', 'i']
[EX A]: 5181303

[EX Q]: 14, 17, ['7891', 'n', '3475', 'c', '3281', 'Y', 'R', '5745', '4195', 'c', 'r', 'D', '7707', 'V', '7313', '8857', '1849', '5591', '553', '8389', '3833', 'm', 'v', '3663', 'k', 'U', 'o', 'p']
[EX A]: 948175883137V

[EX Q]: 18, 24, ['j', '1839', 'c', 'O', 'x', 'A', 'v', '9385', '1465', '3139', '5819', '9471', 't', 'b', 'K', '753', '8209', 'F', '4621', '3989', '6391', 'h', 'V', 'j', 'T', 'F', '3009']
[EX A]:
jVh193698931264F