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

[431, 4017, 'R', 'a', 'F', '9581', 'Y', 'f', 'z', 'b', 1235], [4115, 'u', 'g', 'f', 2455, 'a', 'F', '9581', 'Y', 'f', 'z', 'm', 7245, 'I', 7021]
a, F, 9581, Y, f, z

['q', 'o', 4457, 'n', 5225, 3633, 8939, 8239, 8309, 8551, 'g', 'i', 231, 9961, 7455, 3895, 7053, 'z', 9989, 'j', 'M', 'X', 'H', 'o', '8723', 'c', 'v', '3103', 'a', 'F', 'v', '2307', 'w', 'Q', 'J', '695', 'e', 'y', '4567', '9385', 'h', 'c', '5405', '7473', '7479', '4335', '1059', 'e', 'N', 8357, 'f', 8957, 8107, 'H', 'a', 6831, 'E', 'K', 5359, 'U'], [8035, 'a', 'y', 'o', 6869, 4247, 817, 8471, 9273, 'c', 7983, 'v', 1305, 'n', 6951, 4505, 83, 3005, 5965, 'p', 'H', 'o', '8723', 'c', 'v', '3103', 'a', 'F', 'v', '2307', 'w', 'Q', 'J', '695', 'e', 'y', '4567', '9385', 'h', 'c', '5405', '7473', '7479', '4335', '1059', 'L', 53, 6103, 6769, 'j', 'M', 5003, 5689, 'k', 7347, 6505, 4659, 'd', 'p', 7555, 2393, 2835, 'z']
H, o, 8723, c, v, 3103, a, F, v, 2307, w, Q, J, 695, e, y, 4567, 9385, h, c, 5405, 7473, 7479, 4335, 1059

['C', 4963, 'x', 1023, 6487, 'c', 4677, 1645, 'd', 'g', 'j', 'V', '8455', 'o', 'a', '4913', 'x', '6871', 'b', '8755', 'c', '1281', 'h', 'o', '2961', 'h', 'X', 8871, 'n', 'e', 'M', 'I', 6103, 9603], [2537, 'J', 5861, 'G', 10009, 6871, 2891, 'o', 'L', 'v', '8455', 'o', 'a', '4913', 'x', '6871', 'b', '8755', 'c', '1281', 'h', 'o', '2961', 'h', 'p', 8175, 3585, 4209, 2689, 'k']

8455, o, a, 4913, x, 6871, b, 8755, c, 1281, h, o, 2961, h