In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[241, 7349, 1303, 't', 'm', '5355', '8849', 'c', 'u', 'x', '1105', '7895', 'j', '6057', 't', 'd', 'H', '6425', 'D', 4433, 's', 7957, 'j', 'p', 'H', 'C', 'R', 8897], ['T', 'B', 8147, 7291, 2717, 5217, 'D', 701, 4879, 'K', 847, 'm', '5355', '8849', 'c', 'u', 'x', '1105', '7895', 'j', '6057', 't', 'd', 'H', '6425', 'W', 'l', 'd', 'y']