In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[6101, 5997, 'O', 4389, 8905, 4743, 'Q', 'o', 'L', 'S', 'v', 'n', 'y', 'c', '37', '3645', '6223', '8327', '7211', 'F', '8655', '9993', 'e', 'x', 'r', 'b', 8515, 'o', 7157, 7297, 'j'], [7465, 9397, 7139, 1445, 5765, 'v', 'X', 3327, 'v', 'n', 'y', 'c', '37', '3645', '6223', '8327', '7211', 'F', '8655', '9993', 'J', 'L', 3473, 9389, 'M', 203, 'u', 6969]