In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[1513, 6311, 'm', 429, '2611', '229', 'N', 'T', 'u', 7431, 2065], ['u', 'M', 3531, 3681, '2611', '229', 'N', 'T', 't', 'T', 8007, 6605]