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:
22, 29, ['7033', 'L', '8085', '9405', 'w', '9699', 'Y', 'w', 'J', '5543', '3967', 'B', '7289', '2385', '9123', 'M', 'o', '3055', 'b', '7955', '5857', 'N', 'l', '5075', 'H', '6681', '3289', '2135', '3593']

Ex Output:
3953531298231866H5705lN


Ex Input:
10, 10, ['Z', 'Z', '2205', '7113', 'G', 'k', '973', 'I', 'n', '415', '1505']

Ex Output:
514


Ex Input:
12, 21, ['N', 'Z', 'j', 'x', '9843', 'O', 'P', 'G', 'C', 'S', '3385', 'Q', 'Y', 'z', '9463', '8899', '7511', '273', '1331', 'q', 'v', 'B', 'b']

Ex Output:

vq1331372115799883649zYQ