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]: 14, 20, ['7043', '8365', 'm', '8535', 'i', '9021', '6367', 'Q', '5707', 'r', 'D', 'H', 'e', 'g', '5847', '7645', 'f', 'R', 'u', '1699', '795', 'h', 'H', '489']
[EX A]: 1699uRf76455847g

[EX Q]: 4, 12, ['4811', '5765', '695', '8003', '9709', 'Q', '3265', '1983', '8313', 'P', '7717', 'V', '5061', 't', '7263', 'z', 'a', '3807', '9269', '2399', '8537', 'O', 'd', 'j']
[EX A]: V7717P831319833265Q97098003

[EX Q]: 4, 8, ['t', 'J', 'b', '1213', '8021', '4155', '2129', 'i']
[EX A]:
i2129415580211213