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.

Example Input: 2, 12, ['9797', 'D', '41', 'Y', 's', 'u', 'X', 'Q', '2437', '7385', '7137', 'S', '6367', 'w', 'f', '7021', '7685', '7413']
Example Output: S731758377342QXusY14D

Example Input: 2, 2, ['4359', 'G', 'A']
Example Output: G

Example Input: 10, 11, ['W', '9711', '8843', 'j', '3319', '6027', 'z', 'a', 't', 'h', 'e', '7753', 'S', 'K', '5095', 'f', 'n', 'y', '2647', '4173', 'z', 'Y', '4765', 'D', '6431', 'i', 'I', 'g', '1907', '4049']
Example Output:
eh