In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
--------
Question: [9537, 9603, 'U', '4157', 'M', 'k', 'w', 9373], [3355, 4417, 'U', '4157', 'M', 'C', 'k']

Answer: U, 4157, M


Question: [3409, 'W', 7371, 705, 4353, 6055, 1109, '2039', '1331', 'M', '1507', '1583', '9005', '3561', 'm', '3453', '9927', 'L', '5625', '3923', '5839', 'b', 'a', '1865', 'l', 'Z', '4855', '2985', 'l', '7011', 'Z', 'f', '6205', 'd', 'r', 5975, 7455, 'P', 7563, 'A', 797, 'm', 'y', 'S'], [851, 'D', 'Z', 't', 'd', 189, 'V', 'o', 8559, 3455, '2039', '1331', 'M', '1507', '1583', '9005', '3561', 'm', '3453', '9927', 'L', '5625', '3923', '5839', 'b', 'a', '1865', 'l', 'Z', '4855', '2985', 'l', '7011', 'Z', 'f', '6205', 'x', 'q', 7907, 857, 2245, 5847, 'h']

Answer: 2039, 1331, M, 1507, 1583, 9005, 3561, m, 3453, 9927, L, 5625, 3923, 5839, b, a, 1865, l, Z, 4855, 2985, l, 7011, Z, f, 6205


Question: ['m', 435, 311, 'i', 'y', 'O', 5487, 5927, 'o', 1083, 'K', 281, 6839, 4789, 'b', '7205', 'X', 'U', 'A', 'P', 'b', '2671', 'r', '6135', '6849', '2229', 'K', '8031', '8169', '3341', 'n', '1205', '7085', '255', 'G', 7163, 4809, 2331, 'g', 'M', 5149, 6939, 6039, 2889, 'R', 7119, 'p', 'A', 'D', 'f'], [1987, 4011, 'b', '7205', 'X', 'U', 'A', 'P', 'b', '2671', 'r', '6135', '6849', '2229', 'K', '8031', '8169', '3341', 'n', '1205', '7085', '255', 'l', 8253]

Answer:
b, 7205, X, U, A, P, b, 2671, r, 6135, 6849, 2229, K, 8031, 8169, 3341, n, 1205, 7085, 255