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: 2, 3, ['N', 'U', 'D', 'm', '9001', 'I', '2675', 'l', '2771', 'U', '1181', 'U']

Answer: DU


Question: 4, 19, ['o', 'C', 'M', '9251', 'V', '369', '2559', 'w', '5883', 'u', 'b', 'x', '9009', '2981', '2803', 'F', 'j', '2593', 'p', 'D', '8019', 'M', 'W', '7003', 'D', 'B', '9037', 'h']

Answer: p3952jF308218929009xbu3885w9552963V1529


Question: 3, 12, ['9483', '6249', '4999', 'k', '8813', '1703', '1445', 'P', 'L', 'r', 'H', 'P', 'o', 'D', '8087', 'c', 'c', 'R', 'G']

Answer:
PHrLP544130713188k9994