In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[2357, 'm', 'C', '5667', '9677', '21', 't', '2481', 'Z', '6125', '4427', 'S', 'A', 'W', 'S', 'H', '6585', '2869', '9091', 'h', '9475', '5153', 'H', 'B', 'H', 'Q', 'A', 'i'], ['V', 9755, 7823, 'B', 6745, 'T', 6989, 'w', 'M', 'G', 'T', 5779, 'q', 'r', 2557, 2941, 2293, 4267, 2029, 'C', '5667', '9677', '21', 't', '2481', 'Z', '6125', '4427', 'S', 'A', 'W', 'S', 'H', '6585', '2869', '9091', 'h', '9475', '5153', 'H', 'B', 'X', 'O', 2927, 1257, 5281, 'o', 'x', 4443, 'q', 'w', 'Q', 685, 't']