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: 14, 20, ['9977', 't', 'Y', 'i', '7981', 'a', '1711', '3371', '9143', '3665', '1525', 'y', 'b', '379', 'k', 'T', 'Q', 'D', 'c', '1001', '551', 'Z']

Answer: 1001cDQTk973


Question: 6, 12, ['9905', '863', '33', 'Q', 'G', 'r', 'N', 'q', '3021', 'I', 's', 'N', '5855', 's', 'V', 'y', 'T', '135', '4301', '915', 'v', 'e', 'R', '7581', '1945']

Answer:
NsI1203qNr