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]: 10, 12, ['233', '5565', '3017', 'r', 'N', '5143', 'm', '349', 'x', '653', 'j', 'K']
[EX A]: Kj653

[EX Q]: 17, 27, ['8059', '3683', '8267', '6233', 'Z', '4363', '7865', 'J', 'l', 'S', '7545', 'p', 's', '939', '1725', '1685', '4431', '8995', 'P', '1061', 'I', '8617', '3529', '5785', 't', '4493', 'd', 'x', 'N', 'x']
[EX A]: d4493t578535298617I1061P89954431

[EX Q]: 8, 21, ['5987', '9263', 'l', 'd', '8225', '1561', 'S', 'o', '6579', 'f', 'K', 'a', 'L', 'l', '2085', '517', '677', 'U', '347', '591', '2141', '4043', '6995', '8585', 'Z', '7397']
[EX A]:
2141591347U6775172085lLaKf6579o