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

[Q]: [7615, 3985, 'o', 1073, 5157, 5347, '7031', '7637', '6703', '7735', '8445', '9373', 'f', 'x'], [1247, 'x', 5707, 3649, 'g', 'z', '7031', '7637', '6703', '7735', '8445', '9373', 'h', 6317, 'T', 'M', 5703, 'h']
[A]: 7031, 7637, 6703, 7735, 8445, 9373


[Q]: [875, 'U', 'g', 'q', 'H', 2847, 'f', '6811', 'B', '7549', 'K', 'r', 'V', 'x', 'P', 'X', '2469', '3845', 'W', 'e', 'n', 5885, 'w', 3345, 4693, 'H', 7789, 'y', 'j', 'e'], ['V', 'j', 6713, 2923, 'y', 6205, 'm', 5961, 9023, '6811', 'B', '7549', 'K', 'r', 'V', 'x', 'P', 'X', '2469', '3845', 'W', 'y', 7427, 5987]
[A]: 6811, B, 7549, K, r, V, x, P, X, 2469, 3845, W


[Q]: [819, 'C', 2785, 'Y', 'q', '3669', 's', '1791', 'P', 'g', 'G', 'a', '5127', '7567', 'D', 'H', 'u', '7649', 'T', 6447, 3727, 'S', 7047, 'X', 9959, 'E', 2347, 'n', 'Z', 'f'], ['C', 'H', 'P', 'v', 'x', 'H', 'T', 'm', 8927, 'C', 9125, 'f', '3669', 's', '1791', 'P', 'g', 'G', 'a', '5127', '7567', 'D', 'H', 'u', '7649', 'e', 'U', 'D', 3173, 'D', 'A', 4711, 'p']
[A]:
3669, s, 1791, P, g, G, a, 5127, 7567, D, H, u, 7649