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, 24, ['r', 'Z', 'i', 'C', '1201', '3681', '3607', '1289', 'G', 'w', '2325', 'B', 'q', '6439', '4783', 'a', '4515', '3309', 'T', 'I', '2771', '9351', 'F', '5247', '5737', 'f', '245', 'W', 'A']