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.
8, 10, ['8749', 'G', 'e', 'U', '9019', '2549', '35', '955', 'a', 'M', 'm', 'g', 'T', '3621', 'G', 'n', 'p']