In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[3669, 7013, 885, 'z', 'u', 793, 241, 'u', 'm', 6217, 7045, 7153, 'G', 'y', 'B', 'H', 'b', 'c', 6089, 'W', 6563, 'T', 'R', 4751, 'B', 'c', '8847', 't', 'v', 'Z', '6849', '9155', '9389', 't', 's', '8869', '6813', 'l', '477', 'j', 'C', '4695', 'K', '6235', '8217', '709', '2429', 'O', 'r', 'L', 'K', 'U', 'h', 'A', 'I', 2733, 'T', 8397, 'a', 2931, 'K', 4207, 8217], ['z', 'j', 8779, 'g', 2825, 'S', 'u', 'i', 'y', 'A', 'O', 8713, 'V', 4653, 6269, 8825, 5333, 'Q', 'l', 'g', 'B', 'c', '8847', 't', 'v', 'Z', '6849', '9155', '9389', 't', 's', '8869', '6813', 'l', '477', 'j', 'C', '4695', 'K', '6235', '8217', '709', '2429', 'O', 'r', 'L', 'K', 'r', 'k', 5021, 6183, 'U', 'C', 1831, 'e', 4023, 'W', 7047, 'S', 'y', 'W']