In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['b', 2833, 'Y', 'c', 8791, 'k', 7327, 6717, 3525, 477, 'i', '5477', 'b', 'x', 'x', '1993', 'T', 'V', '5741', 'w', 'x', 'G', 'z', 'c', 'I', 4139, 5383, 'Q', 'd', 'Z', 8751, 1835, 7427, 5457], ['E', 5439, 7047, 4531, 'X', 'k', 157, 'M', 8961, 5663, 8437, 2927, 'L', '5477', 'b', 'x', 'x', '1993', 'T', 'V', '5741', 'w', 'x', 'G', 'z', 'c', 'M', 'h', 'J', 'f', 6461, 'Y', 'e', 'w', 5537, 3965, 'B', 'b', 2339]