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, 10, ['g', '5155', 'p', '6627', 'W', 'q', '2851', 'm', 's', '7781', 'u', '9739']
[A]: 1877sm1582qW7266p


[Q]: 5, 9, ['g', 'B', '7695', 'X', 'h', 'A', '693', 'x', 'Q', 'l', 'Q', '9223', 'y', 'a', 'q']
[A]: Qx396Ah


[Q]: 8, 17, ['4625', '1337', 'D', 'C', 'A', '6893', '9459', '9799', '9077', 'M', '9247', 'y', 'Q', '4227', '1305', '5191', 'd', 'e', '7869', 'f', '1931', '1681', 'j', 'u']
[A]:
d191550317224Qy7429M77099979