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: 12, 27, ['B', '4001', '29', 'c', 'd', 'E', '8197', 'l', '251', 'l', '679', '7447', 'Q', '3925', 'U', 'k', '3733', '8719', 'O', '7483', '2721', '2125', '8925', 'A', 'u', '4809', 'Q', '3303', 'G', 'b']

Q4809uA8925212527217483O87193733kU3925Q7447