In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['J', 'm', 'c', 'X', 'z', 'j', 7431, 9131, 'u', 'q', 6897, 'B', 5919, 9699, 'T', 'O', 't', 'Z', '433', '8061', '9845', '6529', '5239', '5925', 'r', '5321', '5931', 'Z', 'X', '5575', '4661', '8951', 'I', 'K', 'v', '3903', 'M', 'x', '9913', '4051', 'T', 'F', 9373, 'E', 'h', 8435], ['x', 2251, 'T', 9323, 437, 4277, 7665, 8657, 4959, 'u', 'n', 'q', 'B', 3215, 'm', 'Z', 'W', 'B', 'M', 9601, 2989, 'Z', 4743, 'O', 1189, 'O', 't', 'Z', '433', '8061', '9845', '6529', '5239', '5925', 'r', '5321', '5931', 'Z', 'X', '5575', '4661', '8951', 'I', 'K', 'v', '3903', 'M', 'x', '9913', '4051', 'A', 4175, 5147]