In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[2895, 5147, 'w', 'e', 3385, 'm', 'y', 't', 'L', 1739, 8053, 7245, 6403, 8217, 'k', '9237', 'F', '4959', '3637', 'X', '1127', 'L', '9537', '3871', 'D', '3747', 'E', 'U', 'b', 'n', '7893', 'F', 'l', 'y', 4019, 9049, 'n', 'j', 6871], ['c', 'k', 'E', 'L', 6709, 's', 'M', 3861, 'M', 4297, 5731, 'a', 'V', 'k', '9237', 'F', '4959', '3637', 'X', '1127', 'L', '9537', '3871', 'D', '3747', 'E', 'U', 'b', 'n', '7893', 'F', 'w', 'd']