In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
--------
Question: [4249, 1307, 'R', '3377', '9383', 'w', '7897', 'S', '1791', 'f', '6787', 'H', 'K', 7197, 3907, 'I', 5561], [8961, 1477, 'X', 'C', 7153, 1005, 'C', '3377', '9383', 'w', '7897', 'S', '1791', 'f', '6787', 'L', 7313, 2449, 4181, 1573]

Answer: 3377, 9383, w, 7897, S, 1791, f, 6787

Question: ['q', 6247, 7691, 'M', 'i', 3857, 'J', '249', 'j', '3315', 'Y', 'q', 'K', 'B', 'h', 'M', 'i', '3947', '8559', '1833', 'q', 'x', '1469', '7579', '421', 'F', 'y', 'c', '9043', 'r', 'N', 'O', 'N', 'Z', 'a', 8713, 'a', 2717, 'y', 'l', 't', 1815, 9507, 1713, 'N'], ['Z', 7463, 6215, 'r', 43, 'h', 3841, 9317, 'J', 'x', 6735, 'b', '249', 'j', '3315', 'Y', 'q', 'K', 'B', 'h', 'M', 'i', '3947', '8559', '1833', 'q', 'x', '1469', '7579', '421', 'F', 'y', 'c', '9043', 'r', 'N', 'O', 'N', 'Z', 'Q', 'c', 'B', 9989, 'd', 875, 1185, 7121, 5559, 'k', 2289]

Answer: 249, j, 3315, Y, q, K, B, h, M, i, 3947, 8559, 1833, q, x, 1469, 7579, 421, F, y, c, 9043, r, N, O, N, Z

Question: [4681, 'V', 'B', 'l', '5525', '7911', 'm', '5015', 'b', '6631', '8499', 'W', 'R', '1785', '6023', '1727', '7593', 'Y', 'a', 'M', 'D', 'C', 'c', '4641', 'p', 3799, 'l', 'T', 3539, 'U', 2305], [1449, 7835, 'Z', 7345, 'u', 'd', 'l', '5525', '7911', 'm', '5015', 'b', '6631', '8499', 'W', 'R', '1785', '6023', '1727', '7593', 'Y', 'a', 'M', 'D', 'C', 'c', '4641', 'X', 7375, 7633, 4129, 8019, 'r', 7627, 915, 3787, 4313, 9609, 4525, 'C', 'Q', 'F', 7411, 1789, 1943, 4127, 'E', 'z']

Answer:
l, 5525, 7911, m, 5015, b, 6631, 8499, W, R, 1785, 6023, 1727, 7593, Y, a, M, D, C, c, 4641