In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[6155, 9095, '2889', 't', '7655', 'm', 'W', 'D', 5917, 'e'], [7313, 2691, 9511, '2889', 't', '7655', 'm', 'z', 7327, 'n']