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.

4, 20, ['H', '7451', 'X', 'i', '951', '1913', '9949', 'W', '4759', '1309', '1981', 'C', 'J', 'F', '4125', 'l', 'i', 'z', 'S', 'R', '5025', '5959', '1323', 'K', 'O', 'x', '5121', 'c', 'C']
RSzil5214FJC189190319574W94993191159i

8, 8, ['n', '9001', 't', 'e', 'W', '2287', 'f', '2735', 'z', '3065', 'J', '5609', 'e', 's', 'F']
5372

5, 24, ['5229', 'Y', '2499', 'n', 'k', '5939', 'h', 'i', '6599', '8125', 'k', '4165', 'r', 'C', '2315', '8861', 'i', '8463', 'k', 'N', '3437', '9757', '3299', 'h', '4299']

h992375797343Nk3648i16885132Cr5614k52189956ih9395k