In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[7009, 4803, 6551, 7433, 3547, 9973, 6043, 'A', 'u', 8765, 'Q', 'B', 9467, 't', 'K', 4577, 'V', 2091, 'O', '45', 'q', '7121', 's', 'L', 'N', 'n', '915', '7539', '8909', '1917', 'H', '8397', '9609', 'j', '5377', 'j', '3731', '1687', 'A', '8213', 'Z', 'F', 'Q', 8077, 7303], [2103, 'N', 7807, 6643, 'K', 6969, 'p', 7641, 'V', 'a', 6859, '45', 'q', '7121', 's', 'L', 'N', 'n', '915', '7539', '8909', '1917', 'H', '8397', '9609', 'j', '5377', 'j', '3731', '1687', 'A', '8213', 'Z', 'c', 1027, 9015, 5305, 6091, 161, 'V', 7465, 's']