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: 19, 20, ['w', '4131', 'C', '719', '2961', 'Q', '4167', '1001', 'p', '965', '1153', '6881', '3361', 'H', 'f', 'V', '9393', 'x', '6091', 'B', '6757', 'U', '2619', '5649', '6447', 'D']

A: B1906
****
Q: 10, 19, ['V', '2245', '8933', '3669', '7723', 'v', '1895', 'w', 'N', 'g', '3075', 'k', '813', '3569', 'i', 'j', '4087', 'M', '4019', 'n', 'E', 'p']

A: 9104M7804ji9653318k5703g
****
Q: 23, 23, ['J', 'c', '7407', '7645', '3351', 'h', '1235', 'e', 'h', '9967', '6095', '6159', 'f', 'z', 'q', '2205', 'h', '3679', 'z', '9319', 'p', 'd', '6213', '6473', '8407', '7985', 'B', '3757']

A:
3126
****