In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[835, 1423, 325, 'w', 'D', 1313, 4549, 9397, 't', 'c', 'J', 'z', 'G', 357, 'k', 6857, 345, 'R', 'T', '4241', '7087', '8937', '7849', 't', '9735', '4417', '2081', '8025', 'c', '2535', 'd', '9227', '7411', 'm', '6185', 'M', 'x', 'I', 'T', '7183', 'K', '4509', 'X', 'y', 7037, 4781, 'g', 'K', 1223, 5169, 167, 'b'], ['b', 'W', 'K', 'X', 'k', 4535, 6249, 5453, 'X', 'q', 'k', 1511, 'K', 'j', 'A', 1945, 'F', 3107, 6125, 'M', 5647, 'R', 'T', '4241', '7087', '8937', '7849', 't', '9735', '4417', '2081', '8025', 'c', '2535', 'd', '9227', '7411', 'm', '6185', 'M', 'x', 'I', 'T', '7183', 'K', '4509', 'X', 'X', 'W']