In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['g', 'c', 'v', 5115, 'N', 'i', 'Q', 4211, '4441', 'Q', 'h', 'm', '9663', '5247', 'b', '7783', 'N', 'M', '4331', 'I', 'J', 'n', 'L', 'S', 'S', 9719, 2681], ['q', 4021, 'P', 'P', 'K', 2115, 'M', 5473, 'k', 6331, 7781, '4441', 'Q', 'h', 'm', '9663', '5247', 'b', '7783', 'N', 'M', '4331', 'I', 'J', 'n', 'L', 'Y', 5073, 5585, 'Y', 2599, 2443, 2217, 'N', 'W', 'F', 'M', 'b', 'n']