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.

5, 12, ['9227', 'P', 'T', 'k', 'p', '9785', '2047', 'M', '827', '2815', 'C', '7071', 'Y', 'y', '3657', '9961', 'o']
1707C5182728M74025879p

11, 13, ['h', 's', 'Q', '9071', 'x', 'G', 'G', '1815', '51', 'N', '3541', '1393', '939', '6351', 'w', 'v', '8171']
93939311453

7, 15, ['8395', '1123', '2009', 'G', '1827', '3597', '2495', '4595', '9525', '7311', 'd', '5293', '555', 'v', 'F', '8397', '1913', 'Q', 'b', '8857', '4061', '2941', '9485', '3451', 'R', '6067', '7995']

Fv5553925d1137525959545942