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, 2, ['3941', 'p', 'I']
[EX A]: p

[EX Q]: 2, 4, ['T', 'q', '6485', '9125']
[EX A]: 91256485q

[EX Q]: 4, 5, ['G', 'k', '9623', '4877', 'B', '125', '2853', '357']
[EX A]:
B4877