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]: 2, 3, ['b', '5615', 'n', '6147', 'W']
[EX A]: n5615

[EX Q]: 5, 21, ['J', '6557', '5301', '3201', '9347', '9131', '343', '683', 'A', 'c', '335', '6901', '4769', '6013', '4753', 'e', 'B', 'Q', '815', '9515', 'b', 'L', '8979', '8995', 'h', '479', '4793', '8573', '7739']
[EX A]: b9515815QBe4753601347696901335cA68334391319347

[EX Q]: 2, 28, ['697', '3399', '3465', '6975', 'H', '6997', '9139', 'F', '5783', '3289', 'V', '9305', '5929', 'V', 'c', '4133', '2931', '8837', 'Z', 'x', 'C', '6481', 'W', 'w', 'f', 'l', '9211', '7377', '5399']
[EX A]:
73779211lfwW6481CxZ883729314133cV59299305V32895783F91396997H697534653399