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]: 1, 2, ['o', 'b', '7511', 'Z']
[EX A]: bo

[EX Q]: 4, 6, ['e', '4767', '8447', 'e', 'P', '7453', 'i', 'I', 'z', '415']
[EX A]: 7453Pe

[EX Q]: 21, 21, ['2681', 'w', '9185', '8875', 'h', 'f', 'G', 'j', '2627', 'i', 'T', 'y', 'T', 'b', '9537', 'J', '4913', 'f', '7899', '5487', 'N', '7729', 'M', 'b', 'f', '8869']
[EX A]:
N