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: 19, 24, ['4019', 'o', '2603', 'R', '5675', 'T', 'Q', '1985', 'm', '8105', '27', 'b', 'k', '4175', '7607', '4641', 'H', '1521', '5387', 't', '2187', 'N', 'x', 'W', 'Y', '4687', 'Z', '5609']

WxN2187t5387