In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['I', 'l', 5511, 1821, 3637, 'v', 7557, 8003, 5383, 'c', 6051, 'v', 5093, 7379, 'c', 4141, 'I', 'Q', 'B', 'l', 523, 2167, 'L', 3209, 'a', 'R', 'O', '9309', 'i', 'Y', '6523', 'M', '889', '5135', 'r', '7611', '323', '8311', '6723', '5477', 'q', '4509', '5311', '8293', 'O', '5977', '3041', '7973', '8125', 'M', 'T', '5175', 'I', '6599', 'R', 'H', 't', 'u', 'V', 'I'], [3899, 'b', 8841, 'R', 8909, 'U', 'm', 599, 1725, 'e', 1119, 4659, 2097, 6807, 9407, 'w', 6119, 9297, 'S', 2429, 'r', 7075, 7881, 'O', '9309', 'i', 'Y', '6523', 'M', '889', '5135', 'r', '7611', '323', '8311', '6723', '5477', 'q', '4509', '5311', '8293', 'O', '5977', '3041', '7973', '8125', 'M', 'T', '5175', 'I', '6599', 'R', 'H', 'Q', 'm', 'F', 'N', 3539, 9461, 4255, 8487, 9141, 'h', 'l', 4551, 9951, 'u', 'M', 'q', 'S', 'L', 4767, 'z', 'W', 6793, 6883]