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: 10, 19, ['J', 'l', 'M', '4723', 'X', '3453', 'W', '457', '2561', 'Y', 'm', '9135', 'i', 'p', 'n', 'u', '7933', 'i', '5533', 'e', '6605', 'L', '8965', '903', '8993', 'L', '3885', 'c']

5533i7933unpi9135mY