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]: 7, 12, ['5269', '8059', '6189', '5469', 'D', 'Q', 'C', '8547', 'I', '37', '5495', '6909', 'H', 'H', 'V', '7219', '6235', 'f']
[EX A]: 6909549537I8547C

[EX Q]: 2, 8, ['4755', '9069', 'H', 'O', '757', 't', '5903', '9195', 'a', '101', 'e', '7363']
[EX A]: 91955903t757OH9069

[EX Q]: 8, 13, ['S', '209', 'D', 'm', 'P', '6123', '1057', 's', 'J', 'Z', 'm', '3923', '3033', '559', 'B', 'a', 'A', 'e', '6219', 'F']
[EX A]:
30333923mZJs