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, 19, ['109', 'n', '59', 'M', 'p', '7543', '7211', 'E', '7365', 'M', '9129', 'q', '6033', '4749', '8593', '8265', '4025', '6899', '1403', 'L', 'Y']

1403689940258265859347496033q9129M7365E72117543p