In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['L', 6751, 6847, 'v', 'g', 'n', 'S', 's', 'o', 'S', 'X', 'S', '5237', '1693', '8139', 'T', '7003', '9411', '8201', '3627', 'F', 'q', 'j', 'v', '2291', 'Q', '1863', 'E', '3229', '5269', 'l', 'X', 8631], [3469, 'H', 2185, 9671, 3667, 'O', 'G', 8795, 'F', 5485, 8425, 4257, 9441, 2999, 7929, 'v', 'g', 'n', 'S', 's', 'o', 'S', 'X', 'S', '5237', '1693', '8139', 'T', '7003', '9411', '8201', '3627', 'F', 'q', 'j', 'v', '2291', 'Q', '1863', 'E', '3229', '5269', 'D', 763, 'T', 2267, 'O', 9177, 'X', 7423, 3821, 9587, 5085, 787, 'q', 'c', 8295, 'D', 7227, 'z', 'y', 'C']