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]: 4, 7, ['C', 'j', 'F', '495', 'H', '6595', 'h', '7567', 'f']
[A]: h5956H594


[Q]: 2, 14, ['5023', 'e', 'F', '2125', '7433', 'w', '4527', '6773', '8739', 'U', 'f', '5807', '1741', 'j', '8437', '6299', '1269', '2505', '4041', 'c', 'v', 'f', 'T', 'T', '189', 'l']
[A]:
j14717085fU937837767254w33475212Fe