In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[2369, 'u', 9213, '2683', 'B', '9323', 'L', 'c', '5981', 'V', '8203', '9177', 'v', 'j', 'b', '7839', 's', 'w', 'l', 2915, 8893, 339, 'L', 3017, 'y', 'Y', 5759, 'e', 't'], ['X', 2781, 2797, 'P', 'd', 7959, 'q', 'X', '2683', 'B', '9323', 'L', 'c', '5981', 'V', '8203', '9177', 'v', 'j', 'b', '7839', 's', 'w', 'X', 's', 'E', 'D', 'N', 4975, 5125, 'Z', 5789, 'M', 9461, 'f', 337, 2337, 'J']