In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['t', 6055, 'U', 1185, 'j', 3925, 'n', '3631', 'K', '4473', 'D', 'j', '3865', 'B', '1509', '5057', '3681', 'P', 'd', 'F', '8741', 'D', '1731', 'y', 'e', '5367', 'D', 'M', 'W', 'g', '191', 'L', '5105', 'x', 3645, 'k', 6867, 'O', 'T', 5517, 9343, 4375, 7135, 8363, 'X', 9167, 'V', 981, 'A', 'r'], ['P', 'I', 4349, 's', 8115, 6671, 'P', 'v', 65, 7661, 6943, 7445, 'y', 119, 4869, 'n', '3631', 'K', '4473', 'D', 'j', '3865', 'B', '1509', '5057', '3681', 'P', 'd', 'F', '8741', 'D', '1731', 'y', 'e', '5367', 'D', 'M', 'W', 'g', '191', 'L', '5105', 'U', 7239, 'P', 'g', 1907, 'S']