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: 18, 22, ['I', '4687', 'V', 'y', 'U', '2255', '6971', '793', 'W', 'O', '3233', '5061', '6355', 'X', 'U', '8435', 'e', 'z', 'u', '6055', 'd', '1493', 'e', '4453', 'X']

A: 3941d5506uz
****
Q: 4, 7, ['C', 'j', 'F', '495', 'H', '6595', 'h', '7567', 'f']

A: h5956H594
****
Q: 10, 12, ['7563', 'O', 'e', 'T', 'k', 'Y', '1607', '2795', '2621', '4041', '5047', 'X', 'O', 'n']

A:
X74051404
****