In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[3533, 'O', '7303', 'Z', '5855', 'j', 'o', 'w', 4187, 'G', 'V'], [6521, 'Q', 'D', 9937, '7303', 'Z', '5855', 'j', 'o', 'C', 'Q']