In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[9701, 'z', 'a', 'g', 'f', 7367, '9203', '6067', 'e', 'K', 'X', '1645', 'c', 8145], ['X', 3563, 4933, '9203', '6067', 'e', 'K', 'X', '1645', 'Q', 3705, 'L', 't', 'R', 6429]