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

['I', 583, 4045, 't', 'N', 'H', '1017', 'u', '7255', '8583', 'M', 'x', '143', 'e', 'l', 'U', 'S', '791', 'a', '6927', '3887', 'R', 'i', 493, 2571, 7837], ['E', 3649, 'M', 7321, 8477, 1609, 'p', '1017', 'u', '7255', '8583', 'M', 'x', '143', 'e', 'l', 'U', 'S', '791', 'a', '6927', '3887', 'j', 4719, 'u', 'F', 'U', 'P', 'c', 3121, 'u', 6871, 'T']
1017, u, 7255, 8583, M, x, 143, e, l, U, S, 791, a, 6927, 3887

['L', 6265, 'o', 'B', 9743, 9139, 't', '4107', '821', '9019', '5149', '7817', 'i', '787', 'G', 'b', 'g', 'g', 'j', '197', 'n', 'W', 'Z', '7081', '4487', '1439', '1117', 'K', 'O', '2241', 'J', 8701, 'U', 'q', 'r', 8487, 'G', 'N', 'z', 3439, 'I', 'a', 639], ['X', 7305, 'k', 4911, 1119, 'S', 'F', 8665, 3167, 1117, 6267, 4025, 'S', 'h', '4107', '821', '9019', '5149', '7817', 'i', '787', 'G', 'b', 'g', 'g', 'j', '197', 'n', 'W', 'Z', '7081', '4487', '1439', '1117', 'K', 'O', '2241', 'H', 7485, 5635]
4107, 821, 9019, 5149, 7817, i, 787, G, b, g, g, j, 197, n, W, Z, 7081, 4487, 1439, 1117, K, O, 2241

['j', 'E', 7745, 'd', 'r', 'E', 7935, 8119, 7899, 'm', 'c', 'p', 9177, 9767, 'z', 'I', 'X', 'B', 'H', '915', 'U', 'q', '343', '7135', 'Q', 'S', 'g', 'L', '7569', '9619', '6137', '8697', '8187', 'L', '2861', '4467', '1375', '5831', '7061', 'F', '7505', 'Q', 'n', 4621, 'i', 'D', 6335, 2885, 235, 'P', 1079, 'V'], [4801, 3861, 'p', 2429, 'E', 'R', 6963, 'J', 'B', 'H', '915', 'U', 'q', '343', '7135', 'Q', 'S', 'g', 'L', '7569', '9619', '6137', '8697', '8187', 'L', '2861', '4467', '1375', '5831', '7061', 'F', '7505', 'E', 'o', 't', 7137, 3953, 'C', 8173, 'm', 'W', 9719, 8229]

B, H, 915, U, q, 343, 7135, Q, S, g, L, 7569, 9619, 6137, 8697, 8187, L, 2861, 4467, 1375, 5831, 7061, F, 7505