In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['o', 4631, 'H', 4271, 'X', 'M', 'M', 'v', 'h', 3455, 's', 5573, 3713, '5283', 'Q', 'H', 'L', 'Z', '7957', 'Q', '2375', 'f', 'V', '9239', '4903', 'r', '2887', '6775', '2073', 'B', '9207', 'k', '9459', 'v', 'z', 'n', 7859, 9927, 2645, 7995, 'g', 'E', 9901, 2539, 'P', 259, 'I', 'x', 'B'], ['T', 9203, 'a', 6639, 7589, 'r', 'k', 7123, 's', 7095, 8209, 'g', 7953, 'L', 'n', 'B', 'p', 'T', '5283', 'Q', 'H', 'L', 'Z', '7957', 'Q', '2375', 'f', 'V', '9239', '4903', 'r', '2887', '6775', '2073', 'B', '9207', 'k', '9459', 'v', 'H', 'z', 'O', 'X', 'B', 'Q', 'u', 'S', 6615, 5559, 'N', 'x']