In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['C', 6575, 8231, 7287, 'Q', 'P', 'J', 8781, 'S', 4793, 3025, 'P', 'i', 8629, 'Y', 'I', '1371', 'L', '9855', 'T', 'w', '5347', 'q', 't', 'p', 'W', 'g', 'P', 'H', '9181', 'k', 'y', 7809], [6901, 7433, 2527, 'U', 'E', 2515, 7149, 5079, 4837, 2997, 2537, 'E', 9431, 'u', 'c', 6511, 'Y', 'I', '1371', 'L', '9855', 'T', 'w', '5347', 'q', 't', 'p', 'W', 'g', 'P', 'H', '9181', 'k', 'k', 5885, 'x', 827, 6803, 'H', 'F', 9567, 5597, 1999, 'N', 'p', 'O', 'D', 7735]