In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[7027, 535, 'v', 'h', 'm', 'C', 'C', 'k', 'z', 3841, 851, 'w', 8263, 'r', 'R', 's', 1401, 819, 'L', 'K', 'M', 'p', 's', 'N', 'u', 'I', '1545', 'n', '3505', 'T', 'E', 'z', 'k', 's', 'y', '2727', '1797', '6303', 'W', 'N', 'S', 'f', '8321', 'm', 'c', 'j', '5', '1795', '8461', 'K', 4121, 7455, 't', 'g', 'w', 2231, 387, 'Y'], ['H', 'f', 'c', 'r', 7989, 3187, 'G', 8115, 8445, 'C', 267, 2185, 8623, 7633, 9291, 71, 'Y', 3475, 'r', 'N', 'u', 'I', '1545', 'n', '3505', 'T', 'E', 'z', 'k', 's', 'y', '2727', '1797', '6303', 'W', 'N', 'S', 'f', '8321', 'm', 'c', 'j', '5', '1795', '8461', 'k', 'a', 7113, 't', 8641, 9737, 513, 'E', 'Y', 3717, 7861, 7489, 'O', 'Y', 3967, 9561, 'p', 'k', 7049, 'f', 2255, 'p', 4137]