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

['m', 'K', 2769, 'i', 'k', 853, 'P', '9255', 'N', '8281', 'f', 'm', 'V', 'a', 3525, 7823, 2111, 'T'], ['Q', 1337, 'I', 'P', '9255', 'N', '8281', 'f', 'm', 'g', 'M', 3873]
P, 9255, N, 8281, f, m

[93, 'H', 'd', 'z', 'G', 'u', '9033', '709', '6413', 'C', 'j', 8909, 5687], [9451, 2867, 'G', 'u', '9033', '709', '6413', 'Y', 'y']
G, u, 9033, 709, 6413

[7491, 'w', 'F', 2929, '6969', '2729', '4371', '6153', 'a', 'r', 'y', 'h', 'y', 'g', 'C', '1381', '5801', '8697', '4093', 'X', 'n', 821, 1983, 'S', 6305, 'O', 6533, 'q', 901, 'U', 2911], [3143, 1605, 4373, 'T', 7055, '6969', '2729', '4371', '6153', 'a', 'r', 'y', 'h', 'y', 'g', 'C', '1381', '5801', '8697', '4093', 'r', 'Z', 943, 861, 8883, 'b', 'n', 3409, 8943, 'M']

6969, 2729, 4371, 6153, a, r, y, h, y, g, C, 1381, 5801, 8697, 4093