In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['U', 7755, 2147, 'y', 'k', 4013, 1877, 6383, 'c', 2633, 3467, 1191, 9791, 9021, 5189, 'Y', 'C', '903', '4945', '7325', '4355', '3771', 's', '661', '7413', 'b', 'U', 'b', '7263', '2061', 'S', 'w', 'V', 1843, 3185, 's', 'e', 'z', 'j', 8883, 'H'], ['H', 'c', 5317, 1993, 7759, 7633, 'Y', 'C', '903', '4945', '7325', '4355', '3771', 's', '661', '7413', 'b', 'U', 'b', '7263', '2061', 'R', 't', 3027, 'U', 'F', 3411, 2529, 'e', 9135, 'o', 295, 'f', 'e']