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: 15, 22, ['D', 'Y', 'd', '4223', '6765', 'd', 'Y', 'R', '3017', '1151', '921', 'W', 'N', 'e', 'F', 'R', '7153', 'Q', '7573', '951', '2163', '1077', 'y', '599']

107721639517573Q7153RF