In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[569, 4237, 'O', 's', 4883, 'r', 'M', 'G', 'C', '739', '3161', 'i', '6077', 'B', 'J', '5207', '6329', '4895', 'k', 'u', '2815', 'A', '4283', 'X', 's', 'k', 8675, 'C', 2753, 'n', 's', 'W', 'U', 4337, 9381, 'd', 1799, 'r', 9097, 'y', 'P', 'O'], [5575, 'c', 'G', 'C', '739', '3161', 'i', '6077', 'B', 'J', '5207', '6329', '4895', 'k', 'u', '2815', 'A', '4283', 'X', 's', 'Z', 'x', 'l', 7821, 7461, 499, 'A', 'g', 6215, 6577, 6503]