In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
--------
Question: ['l', 8387, '6019', 'r', 't', 'Y'], ['S', 'q', '6019', 'r', 'Z', 9863]

Answer: 6019, r


Question: ['p', 'j', 'p', 3253, 'L', 'X', 1755, 4489, 'n', 'V', 7833, 9835, 9139, 't', 3153, 5695, 7775, '6669', 'e', 'm', '5223', '8817', 's', '9893', '9405', 'b', 'c', 'Q', 'd', '7239', 'H', '55', 'f', 'P', 'l', 'O', '65', '2513', '2417', '8039', '7095', 'm', 'n', '3597', 'O', '6129', 'Y', 6177, 'q', 155, 'O', 3591, 'z', 'M', 'Q', 'v', 'e', 4571, 8539], ['K', 'D', 3165, '6669', 'e', 'm', '5223', '8817', 's', '9893', '9405', 'b', 'c', 'Q', 'd', '7239', 'H', '55', 'f', 'P', 'l', 'O', '65', '2513', '2417', '8039', '7095', 'm', 'n', '3597', 'O', '6129', 'N', 'W', 'g', 2189, 'q', 'm', 'x', 3317, 'S', 'K', 'u', 3559, 3153, 'u', 3061]

Answer: 6669, e, m, 5223, 8817, s, 9893, 9405, b, c, Q, d, 7239, H, 55, f, P, l, O, 65, 2513, 2417, 8039, 7095, m, n, 3597, O, 6129


Question: [7919, 3651, 4879, 6109, 4473, 2987, 2353, 3831, 6435, 'o', 6579, 'X', 207, 'x', 6735, 'i', 9715, '3997', '4055', '7371', '2465', 'q', 'A', 'J', '9867', '9589', '9061', '7001', '7685', '9593', '8291', '4409', '3661', '8293', 'l', 'x', '9763', 'I', '2049', '7', '1281', '7851', 'O', 'V', 'm', 5361, 'P', 5953, 'y', 'U', 'J', 845], ['X', 8171, 6233, 2991, 1789, 8481, 'N', '3997', '4055', '7371', '2465', 'q', 'A', 'J', '9867', '9589', '9061', '7001', '7685', '9593', '8291', '4409', '3661', '8293', 'l', 'x', '9763', 'I', '2049', '7', '1281', '7851', 'O', 'K', 'Y', 305, 'r', 2763, 'j', 9327, 2767, 'l', 7121, 'K', 'F', 'b', 7841, 'r', 'q', 5881, 7459, 't', 653, 'V', 5807, 7053, 'e', 7499]

Answer:
3997, 4055, 7371, 2465, q, A, J, 9867, 9589, 9061, 7001, 7685, 9593, 8291, 4409, 3661, 8293, l, x, 9763, I, 2049, 7, 1281, 7851, O