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]: 1, 6, ['H', '103', '7091', 'V', 'T', 'F']
[A]: FTV1907301H


[Q]: 4, 20, ['H', '7451', 'X', 'i', '951', '1913', '9949', 'W', '4759', '1309', '1981', 'C', 'J', 'F', '4125', 'l', 'i', 'z', 'S', 'R', '5025', '5959', '1323', 'K', 'O', 'x', '5121', 'c', 'C']
[A]: RSzil5214FJC189190319574W94993191159i


[Q]: 2, 17, ['T', 'l', 'l', '9315', 'W', '8843', 'W', '6639', '2349', 'Z', '2943', '6275', 'Q', 's', 'd', '447', 'C', '3807', '1679', 'e']
[A]:
C744dsQ57263492Z94329366W3488W5139ll