In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[417, 'e', 7369, 'e', 'O', '5491', '4541', '7523', 'E', 'U', 'j', 's', 'L', 'L', '1857', 'w', '2857', '5539', '9309', '8143', '3219', '541', 'u', '8957', '5021', '2145', '6461', '7297', '9377', 'N', 'K', 'Y', 'b', 'Q', 'k', 'I', 2199, 3751, 'A', 'u', 1765, 2191, 2367, 't', 2797, 1957, 4853, 9569, 4323], [89, 'g', 't', 'Q', 'L', 9601, 'h', 'T', 1469, 'M', 7943, 6413, 8775, 7811, 'z', 'R', 'T', 6497, 6327, 1945, 'P', 'e', 'O', '5491', '4541', '7523', 'E', 'U', 'j', 's', 'L', 'L', '1857', 'w', '2857', '5539', '9309', '8143', '3219', '541', 'u', '8957', '5021', '2145', '6461', '7297', '9377', 'N', 'K', 'Y', 'e', 'd', 6683, 'n', 'o', 'F', 'o', 'm', 'e', 'c', 9571, 'I', 8377, 2777, 3941, 6795, 4715, 2763, 'x', 1993]