In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['H', 6879, 523, 1273, 'c', 5399, 787, 9275, 'T', 'W', 'n', 'M', 'x', 7137, 7383, 9993, 'D', 3961, 6085, 'P', 7535, 'y', 'm', 'm', 's', 't', '37', 'a', '9035', '8077', 'V', 'x', 'u', 'E', '147', '3701', 'C', 'F', 'F', '7201', '5733', '6103', 'q', '6135', 'j', '7323', 'P', '2169', '8921', 'i', '7447', 'M', '9363', '2671', 'I', 's', 'P', 'H', 3653, 'd', 'W', 'q', 'g', 'M', 'i', 8169], ['j', 'B', 2493, 'Y', 'c', 'a', 'C', 'F', 'E', 'M', 't', '37', 'a', '9035', '8077', 'V', 'x', 'u', 'E', '147', '3701', 'C', 'F', 'F', '7201', '5733', '6103', 'q', '6135', 'j', '7323', 'P', '2169', '8921', 'i', '7447', 'M', '9363', '2671', 'I', 'o', 5307, 'P', 'm', 'm', 'H', 9835, 6491, 4489, 'L']