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]: 1, 4, ['2639', '497', '2353', '5375', '1053', '6001']
[EX A]: 537523534972639

[EX Q]: 3, 5, ['r', '3411', 'i', 'O', 'R']
[EX A]:
ROi