In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['j', 5159, 'c', 'F', 7965, 5927, 'R', 'X', 'Y', 'b', 1275, 8975, 'F', 'G', 'd', 117, 6805, 1913, 9613, 'J', 'g', 'K', 'L', 7941, '2907', '3381', '1105', 'H', 'y', '9551', 'B', '8661', '2827', '5651', 'q', 'B', '8273', 'e', '1667', '9537', '8447', '703', '2591', '9969', 'D', '559', 't', '6851', 'z', 'z', 'A', 1079, 445, 'O', 6839, 9939, 1693, 'P', 'n', 'c', 'f', 9185, 't', 1675, 't', 187, 'O', 981, 'l', 'a', 'a'], ['u', 'p', 'l', 'v', 6469, 'W', 'V', 7767, 'y', 'g', 773, 'X', 3147, 5553, 3999, 6191, 9435, 'v', 7727, 'b', 1545, 'y', '2907', '3381', '1105', 'H', 'y', '9551', 'B', '8661', '2827', '5651', 'q', 'B', '8273', 'e', '1667', '9537', '8447', '703', '2591', '9969', 'D', '559', 't', '6851', 'z', 't', 2599, 'k']