In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['b', 6975, 'I', 'g', 'D', 'y', 'y', 'Q', 'G', 'o', 'N', 'e', 'h', 'z', 'r', '5861', 'K', 'e', '4805', 'i', 8971, 's', 4703, 3483, 7693, 9863, 'G', 1655, 'b'], [1221, 9193, 169, 'E', 7173, 'T', 6035, 8609, 'h', 'Q', 'G', 'o', 'N', 'e', 'h', 'z', 'r', '5861', 'K', 'e', '4805', 'h', 3049, 'D', 'z']