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: 6, 28, ['n', 'g', 'v', 'I', 'W', '9263', '3115', 'G', 'Q', 'R', '5785', '1825', '329', '6215', 'U', 't', 'b', '2723', 'L', 'E', '9819', '1659', '1735', '8405', '4865', 's', '1143', '1869', 'X', '9041']

18691143s48658405173516599819EL2723btU621532918255785RQG31159263