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.

[Q]: 30, 30, ['7149', 't', 'W', '5821', '1189', '4423', 'T', 'x', '5131', '9015', 'H', 'k', 'J', '9951', '5697', '1953', 'X', '8691', '3581', '7319', '6977', '8031', '6179', '2109', 'F', 'Y', 'G', '1065', 'y', '869']
[A]: 968


[Q]: 1, 3, ['4181', '3741', 'Q']
[A]: Q14731814


[Q]: 16, 29, ['3903', 'E', '8661', '2715', 'G', 'V', '7033', '1351', '9661', 'q', 'E', '9171', '3553', '9511', 'R', 'H', '2799', '7329', 'J', '5319', '6553', 'Y', 's', 's', 'L', '2445', '1223', 'N', '3189']
[A]:
9813N32215442LssY35569135J92379972H