In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[7633, 'M', 6089, 7345, 'G', '927', '3211', '489', '4949', 'A', '5287', '8203', 'Z', 'u', 'u', 'm', 9889], [1259, 'Z', 'X', 8759, '927', '3211', '489', '4949', 'A', '5287', '8203', 'j', 2065, 'M', 'A']