In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['W', 8031, 4365, 5501, 9905, 7107, 'M', 'e', 1371, '5475', '7279', '9465', '8241', 'a', '9209', '2477', 'h', 'V', 'X', '5353', '5123', 'e', 'D', '7195', '4475', 's', 'h', '4817', 'O', 5651, 6483, 3457], [2251, 6675, 6925, 2203, 'f', 'k', 'T', '5475', '7279', '9465', '8241', 'a', '9209', '2477', 'h', 'V', 'X', '5353', '5123', 'e', 'D', '7195', '4475', 's', 'h', '4817', 'd', 'O', 'x', 2697, 'A', 5573, 'I', 'e', 'O', 9287, 4555, 5451, 'o', 9503, 'p']