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 Input:
6, 8, ['J', '4955', '3497', '8869', 'n', '2093', '6249', 'A', '8957']

Ex Output:
A94263902


Ex Input:
5, 9, ['7453', '7415', 's', 'O', '1161', 'G', 'N', '5925', '3367', 'f', '7739', 'b', 'y', 'o', '2431', 'Y']

Ex Output:
76335295NG1611


Ex Input:
9, 10, ['9757', 'f', '7911', 'A', 'h', '5071', 'e', '9071', 't', 'j', 'o', '2169']

Ex Output:

jt