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

3, 8, ['B', 'w', '4119', '8783', 'B', '3767', '6269', '8115']
811562693767B87834119

3, 19, ['l', '3477', '6127', 'M', '3745', '9273', '275', 'v', '8347', '6407', '5405', 'V', '5255', '6407', '7713', '9077', '2545', '5157', 'J', 'R', '1847']

J515725459077771364075255V540564078347v27592733745M6127