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]: 8, 15, ['9515', 'Q', '9365', '8843', '1391', 'e', 'Z', 'G', '9771', 'c', 'k', '7273', 's', '7523', '1297', '1835']
[EX A]: 12977523s7273kc9771G

[EX Q]: 6, 10, ['3799', '8635', '8411', 'Q', '4813', 'v', '9781', 'b', 'B', 'R', '5555', '2269', '7573', 'j', 'G', '6001', 'l', '209', '763', 'b', 'j', 'f', '9975', '2581']
[EX A]: RBb9781v

[EX Q]: 5, 16, ['5471', 'Y', '8443', '4331', '8713', '7175', '4677', 'R', 'o', 'j', 'c', '6421', '873', '357', 'S', 'A', 'Z', '5123', '8281', 'F', '6235', 'B', 'C', 't']
[EX A]:
AS3578736421cjoR467771758713