In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['q', 4033, 67, 5137, 7709, 'H', 1049, 'U', 'A', 'e', 'G', 'q', 'C', 'r', 6313, 911, 4823, 'z', 'N', 1253, 'a', 7259, 'e', 'c', '287', 'v', '8293', '7423', 'I', 'L', 'h', 'I', 's', 'n', '743', '377', 'K', 'q', '5645', 'z', 'O', '9607', '3639', '7247', '211', 'r', '7051', 'W', 'D', 'i', 7351, 4145, 5207, 1337, 'b', 'Q', 'R', 5127, 'O'], ['C', 871, 7549, 'c', '287', 'v', '8293', '7423', 'I', 'L', 'h', 'I', 's', 'n', '743', '377', 'K', 'q', '5645', 'z', 'O', '9607', '3639', '7247', '211', 'r', '7051', 'W', 'C', 6955, 6557, 'U', 'W']