In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[9079, 'w', 'q', 'P', 3817, '1583', 'a', '3031', 'L', '5201', '2011', '5059', '4471', '4317', '2057', 'E', 'Y', 'k', 3433, 6839, 'Y', 'X', 7513, 1669], ['R', 'e', 7839, 4059, 8833, 1929, '1583', 'a', '3031', 'L', '5201', '2011', '5059', '4471', '4317', '2057', 'C', 'O', 'h', 6807, 'a', 'Z', 3219, 7855, 7155, 'z']