In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[2441, 'w', 169, 'n', 647, 'h', '4295', 's', '347', '2759', 'v', 'f', 'r', '3373', '6919', '6589', '6417', 'j', 'z', 'N', '3669', 'J', 'G', '8009', 'J', '6971', 'S', 5639, 'I', 'O', 'k', 'o', 3977, 'P', 765, 'e', 9165, 8097, 'E', 1471, 'k'], ['R', 3183, 'D', 'C', 9573, 2261, 'S', 'p', 'b', 501, 8395, 1211, 8737, 'j', 'r', 't', 8321, 7351, 'U', 'I', '4295', 's', '347', '2759', 'v', 'f', 'r', '3373', '6919', '6589', '6417', 'j', 'z', 'N', '3669', 'J', 'G', '8009', 'J', '6971', 'I', 'c', 1485, 'v', 9489, 'W', 'x', 8127, 'F', 'i', 8043, 2947, 1947, 'c', 829, 'o', 'c']