In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['y', 'u', 7647, 'l', 'b', 'l', 3611, 6695, 'X', 'K', 7321, 'Y', 's', 'Z', 'I', 2029, 7831, 'e', 'C', 'U', '8645', '5391', 'O', 'Y', '5769', '9481', 'L', 'K', '2409', 'l', '3981', '95', '7781', '9749', '5067', 'G', 'r', '4225', '1601', '4887', 'D', 'E', '1147', '2141', 's', '5743', 'k', 5601, 2291, 'Y', 8743, 131, 'b', 9955], ['w', 'P', 'M', 3043, 1293, 'd', 'f', 1891, 'u', 'U', '8645', '5391', 'O', 'Y', '5769', '9481', 'L', 'K', '2409', 'l', '3981', '95', '7781', '9749', '5067', 'G', 'r', '4225', '1601', '4887', 'D', 'E', '1147', '2141', 's', '5743', 'R', 1963, 'i', 'b', 'L', 9321, 113, 'y', 2683, 'i', 'i', 7451, 767, 'r', 3083, 8897, 'g']