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

['G', 9195, 'n', 'x', 'A', '3777', 'd', 'K', 'W', '1911', '93', '5157', 'j', 'd', 'L'], ['y', 'I', 8025, 5165, 4825, 'L', 'A', 10001, 'x', 'A', '3777', 'd', 'K', 'W', '1911', '93', '5157', 'E', 'b']
x, A, 3777, d, K, W, 1911, 93, 5157

[3279, 'y', 'P', 'z', 'Q', 4043, 789, 5815, 'R', 4907, 'q', 'J', 755, 'P', 'K', 9347, 9373, 4963, 8241, 4569, 5743, 'k', '1879', 'k', '2359', '7235', 'Q', 'x', 'h', 'C', '8845', 'Q', '9305', 'Z', '641', 'O', 'S', '7801', '1457', 'z', 'F', '2455', '2865', '6759', 'e', 'Z', 511, 8577, 6487, 'D', 'k', 'N', 'F', 7597, 'W', 681], ['P', 7513, '1879', 'k', '2359', '7235', 'Q', 'x', 'h', 'C', '8845', 'Q', '9305', 'Z', '641', 'O', 'S', '7801', '1457', 'z', 'F', '2455', '2865', '6759', 'K', 'z', 9701, 9415, 'k', 2901, 'T', 'J', 'H', 7749, 'Q', 8821, 7731, 4005, 9665, 'r', 'W', 'R', 3505, 8403]

1879, k, 2359, 7235, Q, x, h, C, 8845, Q, 9305, Z, 641, O, S, 7801, 1457, z, F, 2455, 2865, 6759