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:
6, 7, ['8123', 'G', '4941', 'Z', 'i', 'T', '3335']
answer:
5333T


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


question:
6, 22, ['403', '5347', '2161', '3709', '3823', 'T', 'B', 'p', 'A', 'e', 'l', 'H', 'f', 'q', 'B', '9357', 'p', '7921', '1493', 'm', '9231', 'R', 'O', '5909']
answer:

R1329m39411297p7539BqfHleApBT