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: 5, 7, ['2695', 'K', 'B', 'h', 'V', '6435', 'Q', '2881', '7385', '8941']

Answer: Q5346V


Question: 3, 14, ['R', 'S', '8031', '5461', 'g', '3405', '2185', '7737', '8757', 'A', 'e', 'C', 'r', '7035', '4573', 'i', 'z', 'I', 'x', 'P', '7753', '107', 'l', 'Q', '6223', 'B', '1721']

Answer: 5307rCeA7578737758125043g16451308


Question: 6, 15, ['7135', 'm', 'a', '8839', 'O', '401', '7133', 'n', 'S', 'Y', '9551', 'm', 'P', 'I', '51']

Answer:
15IPm1559YSn3317104