In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['C', 7405, 6267, 'a', 'D', 1891, 'W', 'Q', '2917', 't', 'm', '1679', '9305', 'L', '9611', '2033', '1763', '9027', 'n', 'D', 'N', 'l', 'F', '4323', '8461', 'O', '7595', '4245', 'G', '2343', 'X', 485, 8691, 'I', 4267, 'w', 'w', 2043, 2871, 'Y', 5177, 3107, 't', 'f'], ['P', 'K', 9883, 1587, 8591, 'J', 'B', 'D', 1865, 'P', 9181, 3549, 617, 'k', 'S', 'U', 'Q', '2917', 't', 'm', '1679', '9305', 'L', '9611', '2033', '1763', '9027', 'n', 'D', 'N', 'l', 'F', '4323', '8461', 'O', '7595', '4245', 'G', '2343', 'c', 5811, 'C', 'K', 3325, 'K', 7685, 965, 'B', 'H', 5893, 3659, 'g', 8249, 6091, 1339, 'p', 7029, 3061, 'N']