In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['Z', 7333, 73, 'U', 'a', '4439', '4117', 'n', '9489', '2269', '6585', '4247', 'z', 'T', '3327', 'j', 'm', 'l', '1151', 'F', 't', 'O', 'w', '5173', 'K', 'k', '1287', 'x', 'C', 'C', 'k', 'j', 'm'], ['c', 1333, 'g', 'N', 'G', 'F', 7701, 'J', 4693, 1313, 8627, 9523, 'u', 'L', 't', 'u', 'I', 5741, 6827, 'a', 'Z', 7869, 6457, 'a', '4439', '4117', 'n', '9489', '2269', '6585', '4247', 'z', 'T', '3327', 'j', 'm', 'l', '1151', 'F', 't', 'O', 'w', '5173', 'K', 'k', '1287', 'x', 'C', 'F', 647, 8557, 5559, 3649, 'n', 6213, 'Q', 'X', 9211, 1349, 't', 6987, 8581, 2135, 9681, 3151, 6501, 1821, 'S', 5691]