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

Ex Output:
76335295NG1611


Ex Input:
3, 6, ['p', 'H', '2775', '2567', '7787', 'D', '3807', '4817', '5399']

Ex Output:
D787776525772


Ex Input:
5, 15, ['5555', '6847', 'g', '6825', 'K', '8257', '3043', '6789', 'o', 'L', '85', '7883', 'v', 'M', '1', 'p', 'd']

Ex Output:

1Mv388758Lo987634037528K