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, ['p', 'A', 'Y', '1837', '7973', '1599']
[EX A]: YA

[EX Q]: 6, 16, ['a', '511', '1179', 'L', 'g', '6341', 'z', '3677', '4357', 'T', 'F', '7461', 'U', '7393', 'p', 'k', '287']
[EX A]: kp7393U7461FT43573677z6341

[EX Q]: 1, 4, ['l', 'K', 's', '5619', 'K', 'H', '9541', 'A', 'w', 'E']
[EX A]:
5619sKl