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:
13, 14, ['5913', '6823', '5945', 'a', '8191', 's', '5405', 'l', '2515', '3901', 'R', '1575', 'e', 'P', '9231', '39', '6651', 'N']

Ex Output:
Pe


Ex Input:
3, 14, ['R', 'S', '8031', '5461', 'g', '3405', '2185', '7737', '8757', 'A', 'e', 'C', 'r', '7035', '4573', 'i', 'z', 'I', 'x', 'P', '7753', '107', 'l', 'Q', '6223', 'B', '1721']

Ex Output:
5307rCeA7578737758125043g16451308


Ex Input:
14, 24, ['6607', 'F', '1207', '9023', 'D', 'p', '519', 'j', '5403', '7013', 'K', 'g', '673', 'o', '3513', '2631', 'B', 'n', 'q', '183', 'M', 'A', 'U', 'h', 's', '6531', '111', '153']

Ex Output:

hUAM381qnB13623153o