In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['k', 5715, 'z', 5527, 4519, 'c', 'p', 1949, 1467, 'k', 'u', 9247, 7605, 'x', 'm', '3937', 'U', 'y', '8937', 'A', '1175', '2401', '2295', '9773', '8289', '5329', '8947', '9269', '5159', '6631', 's', 'l', '5865', 'L', '2477', 'f', 'p', 'O', 8151, 5787, 433, 4483, 'w', 4435, 11, 'O', 5971, 7781], [13, 5389, 2013, 'Y', 6677, 'e', 'x', 5961, 'T', 843, 'R', 8787, 6731, 'p', 2597, 3393, 2587, 'm', '3937', 'U', 'y', '8937', 'A', '1175', '2401', '2295', '9773', '8289', '5329', '8947', '9269', '5159', '6631', 's', 'l', '5865', 'L', '2477', 'A', 'k', 'o', 135, 'H', 'K', 7293, 'O', 'M']