In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['J', 'X', 5243, 'B', 'G', 2497, 'J', 4301, 6887, 'l', 'K', '7325', 'z', 'S', 'A', 't', 'K', 'O', '9749', '2325', 'J', 'S', '5323', 'Z', 'P', '5287', '7207', '2005', 'i', 7425, 'G', 6755, 'M', 875, 3315, 8347, 6239, 'H', 6421, 73, 835, 'j', 2925, 5129], [4437, 'M', 'f', 397, 'C', 'J', 9453, 'x', 'u', 'h', 'K', '7325', 'z', 'S', 'A', 't', 'K', 'O', '9749', '2325', 'J', 'S', '5323', 'Z', 'P', '5287', '7207', '2005', 'a', 9783, 'y', 939, 'O', 'i', 'l']