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: 10, 21, ['9859', 'm', 'V', '2315', 'y', 'u', 'K', 'k', '9541', '6881', '263', 'S', '8413', '4809', 'x', '1525', '9685', '5679', '9787', '1555', '6323', 'X', 'g']

632315559787567996851525x48098413S2636881