In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[9719, 2621, 'A', 'C', 'Y', 5975, 3235, 'p', 'n', 2281, 9745, 'L', 4975, 'I', 1507, 6535, 1009, 3049, 2919, 935, 'G', 3085, 9871, 2395, 'u', '7583', 'K', 'V', 'x', '6987', '7853', 'K', '9197', 'T', 'c', '6251', '233', '911', 'E', 'O', 'h', '2353', '5391', 's', 'c', 'i', 'p', '9277', '5513', '6021', 'f', 'k', 1579, 6043, 9873, 4827, 7095, 3565, 'P', 'N', 9119, 1223, 'h', 1383, 'Y', 'I', 'h', 'r', 8231, 7353], [9541, 'E', 8689, 'r', 'm', 2445, '7583', 'K', 'V', 'x', '6987', '7853', 'K', '9197', 'T', 'c', '6251', '233', '911', 'E', 'O', 'h', '2353', '5391', 's', 'c', 'i', 'p', '9277', '5513', '6021', 'f', 'l', 'P', 'G', 'H', 'U', 9187, 735, 4049, 4187, 1129, 'k', 7129, 4673, 5699, 7433, 2005, 'n', 'p']