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, 15, ['d', '5051', '4411', 'b', 'C', 'L', '3205', '6601', '7993', '6663', 'l', '2809', '7109', '2357', '2069', '5951', '6743', '1371', 'v', '9823', '8305', 'y', '1601']

2069235771092809l6663799366013205LC