In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['k', 2595, 5699, 2909, 7509, 4059, 6431, 2635, 9345, 1695, 8859, 8129, 6921, 'L', 'q', 7639, 'S', '8121', '7873', 'B', 'S', 'l', '6301', 'b', 'U', 'U', '5567', 'O', '747', 'E', 'v', 'G', '6539', 'q', 'V', 'G', 1753, 4353, 'u', 'F', 7743, 3077], [5469, 'm', 6765, 'b', 7703, 'A', 'M', 'r', 'T', 1611, 'y', 7437, 'q', 'Q', 'I', 'A', 'S', '8121', '7873', 'B', 'S', 'l', '6301', 'b', 'U', 'U', '5567', 'O', '747', 'E', 'v', 'G', '6539', 'q', 'g', 6297, 'i', 'm', 3751, 3695, 'T', 'p', 9207, 9227, 3369, 'o']