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.
17, 20, ['7319', 'x', 'Q', 'U', 'd', 'G', 'Z', '2069', 'B', 'T', '333', '2543', 'h', '9253', 'e', '3801', 'O', '3853', '7127', 'k', '9655']