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, 15, ['t', '8459', 'T', '7029', '3995', '8369', 'H', 'o', '8539', '9399', 'C', '6335', '1161', 'F', 'N', 'Y', 'Y', 'G', 'R', '3577', '4897', 'r', 'j', '9077', 'u', '4969', 'Z', '8933']
[EX A]: NF11616335C93998539oH

[EX Q]: 2, 2, ['a', '6541']
[EX A]: 6541

[EX Q]: 18, 21, ['N', 'b', 'K', 'U', 'Y', '3503', '9659', '4535', 'H', '9331', 'P', '115', '9071', 'H', 'Z', 'L', '1619', 'C', 'u', 'r', '8757', 'R', 'y']
[EX A]:
8757ruC