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, 5, ['m', 'U', '3235', 'B', '2015']
[EX A]: 2015B3235

[EX Q]: 18, 22, ['2445', 'L', 'x', 'i', '9929', '3105', 'v', '445', 'O', '353', 'j', '9877', 'D', 'U', '885', '9485', 'V', '8219', '2963', '685', '1659', 'U']
[EX A]: U165968529638219

[EX Q]: 3, 4, ['e', 'A', 'n', 'V', '9985', '4889', '5289', 'P']
[EX A]:
Vn