In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['s', 4953, 3845, 6649, 'K', 'H', 't', 'G', 3651, 1825, 649, 3413, 'x', '5089', 'J', '5201', '1461', 'C', 'k', '2909', 'G', '3271', '5369', 'r', 'v', 'j', '3801', '4025', '6527', 'r', '5897', '6757', 'm', '673', '4809', 'q', 'P', 'q', 'J', 'q', 'C', 'o', 8463, 3723, 2559], ['p', 'p', 'v', 'J', 2113, 'E', 'l', 'r', 285, 'q', 'k', 'i', 3453, 'Z', 'v', 'D', 't', 505, 'h', 'u', '5089', 'J', '5201', '1461', 'C', 'k', '2909', 'G', '3271', '5369', 'r', 'v', 'j', '3801', '4025', '6527', 'r', '5897', '6757', 'm', '673', '4809', 'q', 'P', 'z', 2073]