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:
3, 11, ['V', '9869', 'f', 'X', '3395', 'k', 'B', '6407', 'J', 'Y', 'B', '5067', '4041', 'g', '5145', '8983', 'o', 'D']
answer:
BYJ7046Bk5933Xf


question:
3, 8, ['6673', '3503', 'j', 't', 'y', 'q', 'S', '2339', 'B', 'C', 'b', 'K', '3323']
answer:
9332Sqytj


question:
3, 24, ['p', '8013', '5639', '7395', '2833', 'L', 'G', 'F', '1261', '1235', '4493', '1747', '6693', '8779', '8663', 'm', 'F', '5933', '3415', '2927', 'Z', 'd', '4697', 'e', '5485']
answer:

e7964dZ729251433395Fm3668977839667471394453211621FGL338259379365