instruction:
In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
question:
['u', 'r', 849, 'R', 'F', 'T', '8517', 'n', 'W', '7945', '6371', 'l', 'S', 'G', '7431', 'x', 'b', 'B', '437', '9051', 'p', '465', 'u', 'R', 'p', 'p', 'T', 'z', 'q', 'I', 435, 'f', 5345, 7911, 'A', 4969, 'Z', 'z', 'g', 'F', 'j', 'p', 8691, 'W', 'g'], ['O', 'A', 'Y', 7777, 1037, 637, 'X', 3059, 1375, 1443, 1615, 9593, 'D', 'R', 'S', 'M', 5927, 'R', 'F', 'T', '8517', 'n', 'W', '7945', '6371', 'l', 'S', 'G', '7431', 'x', 'b', 'B', '437', '9051', 'p', '465', 'u', 'R', 'p', 'Q', 'Y', 1371, 'M', 'Q', 1545, 4395, 'm', 'R', 6291, 'g', 'X', 5919, 'p', 'V', 'Y', 'N', 1117, 'U']
answer:
R, F, T, 8517, n, W, 7945, 6371, l, S, G, 7431, x, b, B, 437, 9051, p, 465, u, R, p


question:
['Q', 'N', 'm', 'L', 2015, 'W', 'D', 'd', 'c', 'Q', 'I', 'N', 'W', 'j', 'A', 6921, 'X', 'H', 'N', 'l', 'U', 'p', '4397', 'X', '1559', '167', 'i', '8689', '9273', 'J', 'r', 'a', 'K', '5511', 'R', 'z', 'T', 'f', 'V', 'E', 'V', 6753, 'z', 2281, 'Y', 7397, 115, 3973, 8083, 6475, 'L', 'z', 5969, 3581, 'm', 3171, 3211], ['R', 5629, 'k', 3959, 'R', 'O', 'U', 'V', 'N', 'o', 3345, 'P', 4317, 'M', 'g', 8331, 'v', 'T', 'R', 'Y', 'X', 'H', 'N', 'l', 'U', 'p', '4397', 'X', '1559', '167', 'i', '8689', '9273', 'J', 'r', 'a', 'K', '5511', 'R', 'z', 'T', 'f', 'r', 'u', 9505, 3363, 4823, 'w', 'i', 'B', 'Q', 'Y', 'H', 'R', 2991, 's', 'U', 5579, 'C', 'F', 'E', 'j', 'P']
answer:
X, H, N, l, U, p, 4397, X, 1559, 167, i, 8689, 9273, J, r, a, K, 5511, R, z, T, f


question:
['u', 7923, 'z', 'I', '8221', 'Z', 'w', 'i', 'l', '6609', '9109', '975', '8517', 'q', 'o', 'A', 8571, 7139, 'Z', 'P'], [2945, 'c', 411, 'I', 'F', 'I', 'z', 'I', '8221', 'Z', 'w', 'i', 'l', '6609', '9109', '975', '8517', 'p', 'd', 4187, 't', 2701, 3385]
answer:

z, I, 8221, Z, w, i, l, 6609, 9109, 975, 8517