In this task, you are given inputs i, j, and A, where i and j are integers and A is a list. You need to find all elements of A from the ith element to the jth element, reverse the order in which they occur, and then concatenate them to output the resultant 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 concatenate the elements and then reverse the string.

[EX Q]: 2, 9, ['8179', 'l', 'e', '5541', 'x', 'Y', 'h', '3989', '6651', '2175', 'P']
[EX A]: 66513989hYx5541el

[EX Q]: 9, 18, ['K', 'z', 'N', 'M', 'C', '4085', 'Y', 'T', 'J', 'T', 'B', '1671', '1083', '2961', 'T', 'b', '5905', 'U', '6817', 'K', '9291', 'O']
[EX A]: U5905bT296110831671BTJ

[EX Q]: 8, 21, ['B', 'A', 'S', 'z', '7795', 'w', 'r', '6109', 'r', '5847', 'G', '8145', '8957', '4155', 'k', '4025', 'i', 'S', 'C', 'O', 'D', 'f', 'r']
[EX A]:
DOCSi4025k415589578145G5847r6109