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.
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Question: 3, 6, ['95', '1973', 'L', '8811', '2655', '2661', 'v', 'a', '1115', '7687', '8807', 'r']

Answer: 166255621188L


Question: 4, 10, ['6935', '8323', '6167', 'I', 'G', 'f', '303', '3387', '3257', '3069', 'q', 'r', '187', 'k', '6031', '8221', '721']

Answer: 960375237833303fGI


Question: 7, 24, ['q', 'T', '8185', '2865', 'I', 'Q', '5203', 'r', 'F', 'X', '1995', '1641', '9849', 'B', '49', '8105', '9821', '9051', 'b', 'K', 'L', '7661', '4953', '7507', 'Z']

Answer:
705735941667LKb15091289501894B948914615991XFr3025