In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[3639, 'F', 'c', 3407, 8447, 5173, 'X', 'z', 'M', '7219', '4445', 'v', 'v', 'Z', '831', '7629', '8037', 'd', '7901', '6085', 'X', '9613', '9723', '7123', '835', '2747', '4899', 'K', '7911', 'H', 1803, 2749, 'a', 1615, 'c', 'p', 2793, 7285, 3523, 'o', 'k', 'N', 'l', 7933, 'F', 9547], ['w', 8911, 4115, 'K', 't', 9047, 8901, 4375, 3097, 8965, 't', 471, 6623, 8503, '7219', '4445', 'v', 'v', 'Z', '831', '7629', '8037', 'd', '7901', '6085', 'X', '9613', '9723', '7123', '835', '2747', '4899', 'K', '7911', 'm', 7127, 399, 'h', 'k', 'f', 4969, 't', 5681, 'n', 'h', 'A', 3489, 1873, 4439, 7645, 4345, 'g']