In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['W', 'h', 6569, 'q', 4961, 'x', 2035, 9319, 'N', 'p', 'k', '1045', '5315', '6273', 'I', '7219', 'D', 'w', 'e', 'C', '1491', '7333', 'y', '6945', 'x', 't', 'R', '6763', 'z', 'a'], [9335, 'Z', 'o', 3099, 1943, 'U', 8989, 2007, 9055, 9911, 3289, 'L', 8649, 'h', 'X', 7883, 'p', 'k', '1045', '5315', '6273', 'I', '7219', 'D', 'w', 'e', 'C', '1491', '7333', 'y', '6945', 'x', 't', 'R', '6763', 'r', 'D', 'S', 9285, 'k', 4177, 6823, 7239, 'h', 8585, 'r', 'd', 'b', 'E']