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: 3, 8, ['6945', '2403', '7633', '2933', '1015', 'G', '7261', '9101', '6435', 'M']

A: 10191627G510133923367
****
Q: 1, 3, ['8015', 'y', 'r', '8077', 'U']

A: ry5108
****
Q: 6, 14, ['B', '561', '3735', 'h', '4469', '4873', 'M', '6615', '8773', '9631', '2191', 'H', '2239', 'L', '9341', '8723', '2189', 'U', '7809', '9483', '8663']

A:
L9322H1912136937785166M3784
****