Definition: 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.
Input: 5, 18, ['L', 'A', 'L', 'v', '4759', 'W', '3151', 'L', '7173', '6437', '4083', 'D', '5517', 'Q', 'w', 'c', '9229', '8429', '7629', '8393']

84299229cwQ5517D408364377173L3151W4759