In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[5831, 'v', 7515, 8449, 'h', 2207, 2329, 'I', '9895', 'E', 'V', 'C', 'H', '8681', 'S', 'z', '8427', '247', '9735', 'F', '1487', '2097', '2185', 'q', '5109', '4085', 'a', 'H', 'Q', '6909', 'M', 'c', 'd', 'h', '5407', '6847', '5067', 'G', 7145, 9817, 'C', 'v', 'x', 9815, 1231, 'F', 'z', 'J', 'R', 'k', 'J', 'l', 8529, 3509, 'O', 'J', 'B', 2175, 'x'], ['G', 'H', 'l', 'I', 'J', 'I', '9895', 'E', 'V', 'C', 'H', '8681', 'S', 'z', '8427', '247', '9735', 'F', '1487', '2097', '2185', 'q', '5109', '4085', 'a', 'H', 'Q', '6909', 'M', 'c', 'd', 'h', '5407', '6847', '5067', 'K', 351, 7169, 6301, 'O', 9899, 599, 'K', 'V', 'C', 'P', 'v', 'C', 1319, 'n', 9793, 'o', 'z']