In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['f', 'H', 3775, 'A', 'N', 6783, 'b', 4755, 'b', 2559, 'A', 5377, 8759, 'm', 'l', 4555, 9563, 5241, '4289', 'F', '5189', 'z', 'l', '6083', 'F', '4611', '2727', 'K', '2013', '6115', '2523', 'b', '2339', 'n', 'U', 'g', '5015', 'x', 'C', 'V', 'I', 6571, 1901, 1271, 'W', 5893, 7839, 9621, 'k', 6665, 'X', 'y', 9299, 'F', 'o', 'S', 2303], [6495, 2541, 5701, 'S', 2487, '4289', 'F', '5189', 'z', 'l', '6083', 'F', '4611', '2727', 'K', '2013', '6115', '2523', 'b', '2339', 'n', 'U', 'g', '5015', 'x', 'C', 'V', 'y', 'r', 'N', 1547, 'M', 'V', 4799, 'n', 'L', 1471, 'e', 'N', 1523, 8677, 6381, 6821, 'r', 'w', 6797, 'z', 'w']