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:
8, 11, ['8881', '4663', '605', '7367', 'C', '3663', '3729', '7073', '4973', 'n', 'd', 'y', 'B']
answer:
dn37943707


question:
2, 11, ['6519', 'l', '6577', 'z', '4271', 'R', 'O', '7809', 'K', 'V', '4531']
answer:
1354VK9087OR1724z7756l


question:
8, 16, ['R', '4087', 'H', 'f', 'C', 'a', '9119', 'u', '1469', '2917', 'O', '8533', '2395', 'T', 'M', 'O', '4587', '9671', '9275', '5541', '9195', 'p']
answer:

OMT59323358O71929641u


