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, 16, ['T', '7203', 'J', 'O', 'h', 'm', 'q', '3985', 'H', 'w', '2055', '9161', 'T', '8415', '95', 'c']
answer:
c595148T16195502wH5893qm


question:
6, 7, ['753', '4657', 'h', '13', '593', 'I', '7689', '717']
answer:
9867I


question:
1, 5, ['8973', 'w', '7121', '4745', 'F']
answer:

F54741217w3798