In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[1929, 6295, 39, 'z', 5959, 'Q', 1831, 'V', 5443, 'V', 'G', 673, 2711, 707, 'H', 'H', 'C', 4087, 'p', '847', 'O', 'R', '7891', 'o', '2121', '8793', 'E', '4813', '7653', 'j', 'k', '2425', '6013', '309', 'Q', '6693', 'c', '2413', '247', 'y', '8565', '9855', 'p', 'k', 6711, 'B', 8485, 5957, 4049, 949, 7091, 'a', 'k', 'q', 'q', 5429, 9555, 3281, 'R', 'n', 9799, 4161, 'e', 'g'], ['s', 789, 969, 9537, 'Y', 'Z', '847', 'O', 'R', '7891', 'o', '2121', '8793', 'E', '4813', '7653', 'j', 'k', '2425', '6013', '309', 'Q', '6693', 'c', '2413', '247', 'y', '8565', '9855', 'p', 'g', 1641]