In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.

['l', 8387, '6019', 'r', 't', 'Y'], ['S', 'q', '6019', 'r', 'Z', 9863]
6019, r

[7217, 5633, 8727, 'l', 's', 'u', 'T', 'F', 'n', 'L', 'G', 'K', 'S', '523', '9835', '1331', '7069', '9089', 'z', '8111', 'C', '7653', 'P', 'J', 7151, 'J', 1523, 'p', 369, 8817, 'N', 'B', 1305, 1271, 1349, 3329, 1437, 'p'], [595, 7009, 'f', 463, 'B', 'V', 7397, 'n', 'L', 'G', 'K', 'S', '523', '9835', '1331', '7069', '9089', 'z', '8111', 'C', '7653', 'P', 'Y', 'x', 7741, 4563, 'O', 'l', 'D', 'U', 5221]
n, L, G, K, S, 523, 9835, 1331, 7069, 9089, z, 8111, C, 7653, P

[2131, 'u', 7839, 'N', 5039, 7399, '6475', 'i', 'W', '4251', 'q', 't', '3307', '6385', 'J', '9351', 'i', 'J', 'c', 'Q', '2019', '9317', 'R', '9791', '2841', '1911', 'Q', '5079', 'U', 7327, 1593, 'Z', 7395], [9627, 5443, 'A', 'I', 5381, 5425, 2529, 193, 'w', 'O', 'z', '6475', 'i', 'W', '4251', 'q', 't', '3307', '6385', 'J', '9351', 'i', 'J', 'c', 'Q', '2019', '9317', 'R', '9791', '2841', '1911', 'Q', '5079', 'x', 7333, 2203]

6475, i, W, 4251, q, t, 3307, 6385, J, 9351, i, J, c, Q, 2019, 9317, R, 9791, 2841, 1911, Q, 5079