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]: 5, 12, ['7745', 'U', 'H', '6603', '3997', 'C', '9985', '7383', '3853', 'D', '6269', 'r', '3309', 'a', '7801', 'i', '5357']
[EX A]: r6269D385373839985C3997

[EX Q]: 18, 25, ['c', '5131', '9003', '9289', '825', 'B', '8245', '6175', 'L', '5851', '555', 'h', '8793', 'd', '1833', '2823', 'Q', 'w', '2423', '5363', '2981', '7765', 'q', '8029', 'k']
[EX A]: k8029q7765298153632423w

[EX Q]: 10, 12, ['I', '7783', 'o', 'r', '5555', '471', 'h', 'c', '779', '1215', 'S', '1155', '6375', '1169', '2429', 'E']
[EX A]:
1155S1215