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]: 3, 10, ['L', 'r', 'w', 't', 'T', '1931', 'q', '5649', 'Q', '7981', '6473', '1575', '6915', 'G', 'S', '9503', 'a', 'S', '4387', 'p', 'w']
[EX A]: 7981Q5649q1931Ttw

[EX Q]: 2, 19, ['j', '7679', '6729', '319', '9397', '3963', '5687', '5555', 'L', 'P', '1429', '1885', '1489', '4641', '6755', 'f', 'E', '8993', '1735', '5147', 'g', 'q', '4773', 'y', 'k', '3599', 'S']
[EX A]: 17358993Ef67554641148918851429PL555556873963939731967297679

[EX Q]: 7, 13, ['8905', 'g', 'G', 'f', 't', 'Y', 'X', 'u', '6743', 'J', '9985', 'x', '9255', 'S', 'G', '5643', 'h']
[EX A]:
9255x9985J6743uX