In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['S', 7519, 2893, 'x', 2899, 'Z', 'O', 'L', 'M', 'Z', 'e', 6109, '6199', '8205', '307', '4615', '4713', 'l', 'B', '667', 'H', 'N', 'B', '6069', '6893', 'X', 'N', '4325', '4565', 'W', '7605', '1325', 'J', '5075', 'j', '5697', 'P', 'z', 681, 'v', 'K', 6769, 'N', 'u', 'I', 3911, 'i', 'P', 'd', 'v'], ['l', 6945, 'H', 'Z', 'u', 1737, 3085, 'D', 4117, 5367, 'x', 2641, 'P', 3941, 8177, 'f', 'e', '6199', '8205', '307', '4615', '4713', 'l', 'B', '667', 'H', 'N', 'B', '6069', '6893', 'X', 'N', '4325', '4565', 'W', '7605', '1325', 'J', '5075', 'j', '5697', 'P', 'D', 5585, 1503, 4707, 'y', 2593, 'A', 'o', 'u']