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, 23, ['8861', 'p', 'j', 'z', '1075', 'K', '4161', '1633', 'W', '2613', 's', '8601', 'e', 'n', 'R', 'H', '4839', 't', '8051', 'V', 'r', 'h', '1987', '483', '2753', '7295', '5601', '5935', 'o']
[EX A]: 1987hrV8051t4839HRne8601s2613W16334161K1075zjp8861

[EX Q]: 1, 3, ['u', 'D', '6391']
[EX A]: 6391Du

[EX Q]: 11, 21, ['J', 'l', 'G', '5399', '4799', 'B', '5037', '4005', '9291', '743', '8285', '7697', '121', 'W', 'n', 'r', 'T', '4209', 'H', 'o', 'u', 't', 'n', 'R']
[EX A]:
uoH4209TrnW12176978285