In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[7207, 'T', 7419, 'B', 'y', 7405, 7047, 997, 3475, 1603, 'L', 5467, 3213, 7865, 1981, 'M', 6613, 'c', 'y', 'v', '7093', 'H', '647', '1229', 'o', '9669', '2277', '841', '2845', 'I', '8101', '8621', '4727', '965', '9999', 'x', 'M', 'A', 'g', 'e', '7663', 'E', 2035, 'J', 517, 'M', 'H', 9245, 'D', 7107, 'Z', 9799, 'f', 2197, 5379], ['H', 'c', 1531, 'z', 'i', 'x', 'w', 75, 'j', 'r', 'U', 6837, 4559, 'J', 'Q', 1253, 'v', '7093', 'H', '647', '1229', 'o', '9669', '2277', '841', '2845', 'I', '8101', '8621', '4727', '965', '9999', 'x', 'M', 'A', 'g', 'e', '7663', 'B', 391, 7929, 'c', 303, 'n', 'n', 'o', 'm', 'P', 159, 'C', 'h', 'P', 6229, 1381, 'h', 3161, 'V']