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

[9889, 'I', 'f', 'y', '3773', '4483', 'Y', '2325', 'M', '247', '8091', 'H', '3787', '3845', 'i', 'L', 't', '6949', '6019', '5929', 'm', 2573, 839, 'a', 'S', 9999, 'H', 135, 1089], ['Y', 'a', 9301, 'l', 'v', 'f', 'y', '3773', '4483', 'Y', '2325', 'M', '247', '8091', 'H', '3787', '3845', 'i', 'L', 't', '6949', '6019', '5929', 'Q', 9865, 7343, 741, 863, 'I', 'M', 'u']
f, y, 3773, 4483, Y, 2325, M, 247, 8091, H, 3787, 3845, i, L, t, 6949, 6019, 5929

['X', 6431, 'O', '9101', 'l', 'D', 'Q', 'M', '8881', '9955', 'E', '2703', '8301', 'b', 'o', 'L', 'B', 'D', 8955, 's', 2393], ['D', 9287, 5103, 'r', 'm', '9101', 'l', 'D', 'Q', 'M', '8881', '9955', 'E', '2703', '8301', 'b', 'g', 'n', 'B', 6201, 1791, 6839, 'V', 'Z', 'h']
9101, l, D, Q, M, 8881, 9955, E, 2703, 8301, b

[7643, 1309, 'Q', 'B', 6285, 'O', 1319, 'a', 'h', 'x', 301, 839, '2757', '6779', '1961', 'I', '8139', '4053', 'r', 'l', 'n', 'Y', '1095', '8765', 'a', '8381', '7749', 'Y', '8949', '7031', '5437', 'n', 'H', '8555', 'x', '1079', 'n', 'k', 's', 205, 9535, 7153, 'A', 'g', 9447, 'l', 'R', 'O', 5605, 'U', 7855, 1011, 1339, 8977, 'T', 8109, 8219, 8985, 4885, 'B'], [103, 'V', 3097, 'A', 6071, 'h', 'r', 2735, 'Z', 'H', 'F', 5661, 5001, 5003, 2589, 'c', 5741, 'f', 'n', 'K', '2757', '6779', '1961', 'I', '8139', '4053', 'r', 'l', 'n', 'Y', '1095', '8765', 'a', '8381', '7749', 'Y', '8949', '7031', '5437', 'n', 'H', '8555', 'x', '1079', 'n', 'o', 1977, 'Y', 5203]

2757, 6779, 1961, I, 8139, 4053, r, l, n, Y, 1095, 8765, a, 8381, 7749, Y, 8949, 7031, 5437, n, H, 8555, x, 1079, n