In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.

[7231, 2153, '3257', '3693', 'P', 3291], [1543, 6411, '3257', '3693', 'G', 'k']
3257, 3693

['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]
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

['A', 4017, 7619, 'h', 'p', 'q', 'z', '6949', 'q', '9737', 'n', 'v', 'U', '6009', '7995', '7079', 'M', '3047', '9513', 'C', 'd', '8839', '6937', 'W', '8169', '4561', '5195', 'Q', '7247', '6591', '8393', '7821', '3533', 'A', 'k', 'f', 'e', 'R', 8097, 129, 'A', 'z', 'B', 5363, 'U', 'I', 'p', 'R', 8975, 8217, 'j', 'W', 'U', 8701, 4293, 3193, 5973, 9561, 9459, 'p', 8099, 'N', 'i', 383, 'X', 'A'], [4445, 4733, 'B', 3687, 9425, '6949', 'q', '9737', 'n', 'v', 'U', '6009', '7995', '7079', 'M', '3047', '9513', 'C', 'd', '8839', '6937', 'W', '8169', '4561', '5195', 'Q', '7247', '6591', '8393', '7821', '3533', 'A', 'k', 'f', 'e', 'p', 1117, 2589, 7435, 9115, 'd', 1431, 8823, 'o', 'k', 6509, 'B', 'Y', 'L', 'A', 4041, 'z', 'p', 5041, 'P', 9301, 'j', 'Y', 'g', 9171, 'y', 'H', 'j', 2975]

6949, q, 9737, n, v, U, 6009, 7995, 7079, M, 3047, 9513, C, d, 8839, 6937, W, 8169, 4561, 5195, Q, 7247, 6591, 8393, 7821, 3533, A, k, f, e