In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['V', 'N', '8255', 'z', '1839', '3651', 'b', '7673', 'R', 'y', '9495', 'L', 927, 'b', 6571, 5943, 'v'], ['p', 4501, 'M', 223, 6657, 'Z', 'C', 1951, '8255', 'z', '1839', '3651', 'b', '7673', 'R', 'y', '9495', 'C', 'g', 'U', 'v']