In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[4931, 5661, 8651, 'l', 'd', '9585', 'r', 'U', 'z', '6511', '9443', '2917', 'K', 2179, 5747, 'C'], [3737, 7345, 3921, 'i', 9199, 3269, '9585', 'r', 'U', 'z', '6511', '9443', '2917', 'A', 'd', 185, 'M']