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]: 3, 20, ['m', '9539', 'y', 'E', 'E', 'C', 'y', 'M', 'G', 'N', '4167', '2753', 'e', '8259', 'c', '6333', 'k', 'c', '471', '6461', 'w', '8919', '3849', 'm', 't', '6973', 'K']
[EX A]: 6461471ck6333c8259e27534167NGMyCEEy

[EX Q]: 4, 12, ['8125', 'K', 'W', '8269', '5965', '7005', 'P', 'K', '5753', 'S', '1117', '3797', 'E', 'j']
[EX A]: 37971117S5753KP700559658269

[EX Q]: 2, 6, ['N', 'i', '629', '2701', 'S', 'G', '2835', 'G', '2645', 'n', '8131', '1891', '6421', '5069', 'F', 't', '1363', '7439', '7099', '7191', 'E', 'n', '3757', '2737', '3147', 'Y', '9511', '9635', '7247']
[EX A]:
GS2701629i