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:
5, 6, ['u', 'O', 'l', '9119', 'P', '6983', 'H', '6701']
answer:
3896P


question:
5, 14, ['S', '4231', '6377', '4559', '8213', '2583', 'Z', '3547', '4007', 'm', 'Z', '3671', '6455', '9961', 'm', '8539', '8627', '7379', 'q', '6557', '1469', 'G', '321', 'C', '5671', 'p', 'E', 'h']
answer:
169955461763Zm70047453Z38523128


question:
4, 10, ['9415', '5997', '1209', 'q', 'W', '6721', '6537', '7073', '5435', 'C', '8399', '2109', '7443', 'w', '9931', 'T', '6433', 'I', 'u', '6879', '8799', '1749', '2107']
answer:

C5345370773561276Wq