In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[7045, 's', 1881, 'h', 'C', 'f', 6009, 9097, 6287, 'X', 'f', 'k', 1025, 'E', 'h', 'q', '8705', '6055', '9597', '5475', '983', 'U', '6677', 's', '8625', 'N', '4507', '2011', 'A', 'X', 'h', 'X', '2531', 'l', 'W', 'M', 'l', 'N', 'I', 'J', 'I', 't', 8157, 'K', 'g', 4047, 'b', 'X', 7759, 'C', 8353, 4171, 3845, 2201, 4659, 6371, 6229, 'K', 'M', 'S'], [571, 6285, 'G', 5769, 'k', 7851, 'p', 5909, 4025, 'v', 3535, 'Y', 3491, 'E', 'h', 'q', '8705', '6055', '9597', '5475', '983', 'U', '6677', 's', '8625', 'N', '4507', '2011', 'A', 'X', 'h', 'X', '2531', 'l', 'W', 'M', 'l', 'N', 'j', 249, 6227, 'y', 6779, 9781, 9729, 9565, 'H', 4523, 6389, 'Q', 5593, 2045, 'b', 1443, 'U']