In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['F', 9945, '10025', '4821', 'D', 'r', 'Y', '5681', 'Z', '5315', '8815', 'i', '2083', '3079', '3625', 'c', 'Q', 'H', 'K', 'o', 'M', 'x', 9487, 8421, 7889, 3765, 9369, 'I', 'i'], [9503, 1335, 1913, 'R', 5597, 'i', 6553, 5315, 9655, 'e', 3651, '10025', '4821', 'D', 'r', 'Y', '5681', 'Z', '5315', '8815', 'i', '2083', '3079', '3625', 'c', 'Q', 'H', 'K', 'o', 'E', 'N', 'Q', 3373, 4847, 4353, 9893, 'z', 2821, 2971, 6815, 'j']