In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[3733, 8065, 'R', 'l', 3393, 'c', 't', '6999', 'T', '5277', '2075', '9649', '4753', 'b', 'j', 'k', 'E', '6295', 'h', 6959], ['I', 5839, 9185, 2739, 'c', 't', '6999', 'T', '5277', '2075', '9649', '4753', 'b', 'j', 'k', 'E', '6295', 'n', 'H', 1319, 'X', 's', 'X']