In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['y', 'X', 4149, 'w', 'W', 1705, 3677, 'c', 'z', 5077, 'y', 5667, 'l', 's', 'L', 'J', 'N', '3815', '1325', '8951', 'L', 'U', '5083', 'l', 'e', '7267', 'y', '2779', '4889', '4805', 'c', 'g', '87', 'X', 'U', 'b', 5977, 4289, 'r', 7915, 9653], [1321, 2925, 3673, 225, 1255, 1431, 'K', 'Z', 7155, 737, 'l', 's', 'L', 'J', 'N', '3815', '1325', '8951', 'L', 'U', '5083', 'l', 'e', '7267', 'y', '2779', '4889', '4805', 'c', 'g', '87', 'X', 'U', 'N', 'U', 'o', 'n', 'i', 'o', 'q', 'q', 1137, 'm', 8879, 725, 8749, 5903, 711, 'S', 'S']