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: 5, 6, ['q', 'L', 'f', '391', '7601', '2925', 'i', 'C', '4787']

A: 52921067
****
Q: 4, 11, ['H', 'E', 'l', '5011', 'R', '2693', '1081', '9825', '8503', '213', '2717', '8335', '3355', 'd', '7727', '3417', 'R', 'V', 'e']

A: 71723123058528918013962R1105
****
Q: 10, 13, ['311', 'S', '1009', 'r', '9455', '9001', 'p', 'v', '4085', '5129', '7587', '13', 'W', 'E', 'O', 'i', 'N', 'C', 'K', '6009', '1527', '6029', 'p', '2729', 'z']

A:
W3178579215
****