In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['w', 9629, 't', 7585, 's', 'v', '3215', '4887', '411', '8511', '6147', 'C', 'p', '6245', 'k', '7701', 'o', 'Z', 't', 'l', 'q', 's', 'g', 2731, 'r', 793, 8967], ['q', 'L', 6453, 4251, 'D', 's', 'v', '3215', '4887', '411', '8511', '6147', 'C', 'p', '6245', 'k', '7701', 'o', 'W', 'r', 'q', 'H', 'q', 6271, 'L', 'E', 9397]