In this task, you are given inputs 'i', 'j', and A, where 'i' and 'j' are integers and A is a list. A list is shown by two brackets and comma-separated numbers and characters inside, like ['1', '12', 'l']. You need to concatenate all elements of A from the ith element to the jth element, and then reverse the resulting 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 reverse first and then concatenate.
21, 27, ['393', 'j', '4409', 'E', '3575', '235', '6557', '8025', '9489', 'p', '2657', '4715', 'z', '8577', 'e', '2373', '501', 'b', 'b', '7915', '4253', 'C', 'l', 'g', '8427', '7863', 'e', 'h']