instruction:
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.
question:
1, 4, ['619', '9623', '5589', 'r', 'Z', '3065', 'p', '9567', '5065', '8433', '2807', 'b', '8271', 'k']
answer:
r98553269916


question:
11, 12, ['n', '8991', 'Z', '4113', '1623', '1351', 'l', 'p', 'T', '9931', '11', 'i', '1775', 'h', '7237', '8553', 'Q', 'U', '5395', '8727']
answer:
i11


question:
16, 24, ['i', '2649', '4493', '8185', 'y', 'S', '9513', '2687', '837', 'U', 'I', 'q', '6573', '117', '2545', '8527', 'f', 's', '3633', 'W', 'y', 'w', '3877', '9039', 'C', 's', 'o']
answer:

93097783wyW3363sf7258