In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[491, 5411, 309, 3647, 'u', 6269, 'T', '9387', '1671', '2101', '7465', '9673', '129', '5773', 'f', 'e', 'J', 'T', 'q', '7191', 'X', 'w', 'y', 't', 'e', 'F', 1985, 't', 8393], [3053, 9325, 291, 'M', 'Y', 'K', 'M', 'T', '9387', '1671', '2101', '7465', '9673', '129', '5773', 'f', 'e', 'J', 'T', 'q', '7191', 'X', 'w', 'y', 't', 'e', 'E', 'Y', 7559, 4607, 'F', 'F', 3013, 'n', 'd', 1879, 'c', 'f', 7893, 'G', 2459]