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.

Q: 11, 24, ['1773', '8217', 'W', '3703', '5595', 'f', '9677', '1509', '6451', 'o', 'W', '4899', '4895', '6663', '1999', 'b', '147', 'h', 'R', '8621', '7049', '9943', 'S', '707', '8361']

A: 707S349994071268Rh741b9991366659849984W
****
Q: 14, 15, ['3351', '8899', 'M', 'm', '2939', 'e', '1681', '9189', 'b', 'j', 'L', '1927', '2855', '2993', 'F', 'P', '3261', '3185', 'U', '8887', 'M', '9865']

A: F3992
****
Q: 16, 20, ['q', '9699', 'L', '8761', 'O', 'u', 'F', '2345', '9199', '5777', '2063', '159', '5101', 'M', 'a', '9947', 'j', 'D', '8447', '5977', 'm']

A:
77957448Dj7499
****