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: 7, 9, ['B', 'a', '2025', 'h', '6341', '9385', 'X', '2251', '8401', 'T', '8599', 's', '6845', '6267', 'J', 't', '6581', 't', 'a', '5453']

84012251X