In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[1375, 3391, 8485, 'd', 7077, '1611', '8093', '5861', 'L', '4689', 'G', 'a', 'D', 'B', 'C', 'w', '4169', '1071', '7525', '789', 'G', 'k', 'T', 'w', '805', '6431', '7667', '4211', 'J', '4631', 'U', '3827', 'W', 'a', 3731, 'U', 'P', 'S', 7431, 'A', 2061, 'E', 1881, 3037, 4857, 6885, 9637, 1457, 'E', 'd', 'v', 669, 977, 'h', 3509, 'r', 'O', 'e', 6261, 'd'], [735, 6375, 'l', 3363, 'W', 'J', 'W', 'h', 1545, 'd', 'h', 'k', 'B', 1637, 9419, 'k', 6739, 7035, 'V', 'j', 1543, 7041, '1611', '8093', '5861', 'L', '4689', 'G', 'a', 'D', 'B', 'C', 'w', '4169', '1071', '7525', '789', 'G', 'k', 'T', 'w', '805', '6431', '7667', '4211', 'J', '4631', 'U', '3827', 'W', 'r', 'V', 203, 9399, 'd', 'A', 'y', 693, 5551]