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: 3, 16, ['o', '5549', '8747', '3429', '8749', 'm', '103', '1283', '4621', 'm', 'h', '8653', 'v', 'L', '4085', '2835', 'a']

28354085Lv8653hm46211283103m874934298747