In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['W', 6383, 'l', 'r', '289', '7907', '3647', '2295', '6113', 'O', 'k', 1361, 'Q', 'x', 'b'], ['h', 'y', 'r', '289', '7907', '3647', '2295', '6113', 'O', 'K', 9219, 'r', 6967, 3133]