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.

2, 3, ['b', '5615', 'n', '6147', 'W']
n5615

1, 2, ['q', '3853', 'e', 'j']
3853q

2, 22, ['405', '3067', 'q', 'U', 'B', '2621', 'L', '3063', '3361', 'W', '1131', '3015', 'm', 'w', '5315', 'T', '3069', 'W', 'o', '4999', 'h', 'q']

qh4999oW3069T5315wm30151131W33613063L2621BUq3067