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]: 3, 11, ['V', '9869', 'f', 'X', '3395', 'k', 'B', '6407', 'J', 'Y', 'B', '5067', '4041', 'g', '5145', '8983', 'o', 'D']
[A]: BYJ7046Bk5933Xf


[Q]: 3, 7, ['u', '1307', 'F', '8027', 'r', '4559', 'F', 'm', '9805', '5063']
[A]: F9554r7208F


[Q]: 4, 19, ['8145', 'o', '9553', 'Q', 'N', 'x', 'K', '1619', 'c', '3843', '8815', '9141', '47', 'd', '8159', 'Q', 'E', 'I', '1049', '7535', 'J', '7767', '67']
[A]:
9401IEQ9518d74141951883483c9161KxNQ