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.

4, 10, ['5537', 'w', '29', '6133', '7949', 'f', 'c', '3725', '2943', 'W', 'U', '1905', 'l', 'Z', 'r']
W29433725cf79496133

1, 2, ['2081', '5651']
56512081

5, 8, ['K', '917', '735', 'I', '2469', '3857', '2491', 'J', '5697', '3399', '2309', '5671', 'X', 'Q', '8825']

J249138572469