In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[4621, 3883, 8895, 'X', 'e', 2599, 1741, 'V', 'f', '7415', 'c', '7075', 'g', 'x', '275', '6131', 'r', '5733', '1135', '2071', '9271', '6185', '8183', '9353', '6863', 'S', '2663', '9835', 'b', 5505, 2529, 6973, 'e', 'C', 6453], [939, 'o', 'o', 'K', 8513, 1865, 'W', 5559, 305, 'M', 'c', 3245, 451, 'd', 8563, 'V', 1239, 3605, 'S', 'Z', 'V', 'f', '7415', 'c', '7075', 'g', 'x', '275', '6131', 'r', '5733', '1135', '2071', '9271', '6185', '8183', '9353', '6863', 'S', '2663', '9835', 'l', 'T', 'F', 'x', 7121, 'G', 6817, 5455, 'a', 7421, 3269, 29, 6651, 'D']