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

[1875, 'T', 'Y', '5527', 'F', 'y', '5669', 'm', 'k', 2655, 8089], [3997, 7707, 9937, 'M', '5527', 'F', 'y', '5669', 'm', 'a', 'e']
5527, F, y, 5669, m

['u', 4637, 'h', 2259, 'M', 'i', 'h', 'X', 7083, 'o', 't', 9421, 't', 785, 'Y', 'Y', '5531', 'P', 'x', 'b', '4899', 'Y', '8909', '7749', 'k', '4049', '1237', 'M', '8579', 'N', '3167', '9123', '6973', '4981', 'I', '7231', '9783', '9823', 'c', 'e', '7169', '4003', 'C', 8237, 9899, 'M', 3217, 4903, 'I', 5279, 'T', 6849, 3373, 'x', 'S', 'l', 8665, 'V', 'v', 'I', 'A', 'E', 4367, 9513, 'i', 2897, 3433, 8091, 5011], [5327, 4587, 'E', 'w', 4287, 'W', 3339, 2729, 'q', 'Y', '5531', 'P', 'x', 'b', '4899', 'Y', '8909', '7749', 'k', '4049', '1237', 'M', '8579', 'N', '3167', '9123', '6973', '4981', 'I', '7231', '9783', '9823', 'c', 'e', '7169', '4003', 'p', 7351, 4915, 4485, 7747]
Y, 5531, P, x, b, 4899, Y, 8909, 7749, k, 4049, 1237, M, 8579, N, 3167, 9123, 6973, 4981, I, 7231, 9783, 9823, c, e, 7169, 4003

[6609, 913, 'p', 'q', 'y', 2753, 5865, '693', '3587', '9637', '7713', 'Y', '7685', 'G', '2953', '9447', 'F', 'A', '3439', '4549', 'm', '703', '7101', 'r', '9971', 'U', '5685', '7903', 'U', 'z', 'h', '2673', '1841', '6151', 'U', '6783', 'u', 3561, 2857, 3763], [4575, 'X', '693', '3587', '9637', '7713', 'Y', '7685', 'G', '2953', '9447', 'F', 'A', '3439', '4549', 'm', '703', '7101', 'r', '9971', 'U', '5685', '7903', 'U', 'z', 'h', '2673', '1841', '6151', 'U', '6783', 'U', 217, 9441, 'W', 'Q', 'x', 'N', 'm', 'c', 8627, 2441, 'Y', 'V', 9387, 'u', 7789, 'M', 7551, 3941, 'p']

693, 3587, 9637, 7713, Y, 7685, G, 2953, 9447, F, A, 3439, 4549, m, 703, 7101, r, 9971, U, 5685, 7903, U, z, h, 2673, 1841, 6151, U, 6783