In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['B', 8437, 'x', 5195, 'd', 867, 'S', 6455, 8815, 6045, 8055, 'y', 8849, 5767, 'Y', 9075, 6201, 'y', 7391, 'i', '5721', 'Z', '3399', '1319', 'S', 'A', 'V', 'y', '4047', '3225', 'Q', 'T', 'u', '8033', 'p', 'H', '9693', 'o', '8549', '1739', 'P', '2305', 'F', 'U', 'Z', 'U', 'z', 'G', 'd', 7715, 'b', 4117, 'k', 'K'], [8167, 6259, 4233, 't', 2729, 2545, 'Q', 8609, 'l', 'y', 3787, 155, 3997, 'l', 'd', 479, 5257, 2845, 2825, 'Y', 'e', 7195, 4653, 2499, 'I', 'k', '5721', 'Z', '3399', '1319', 'S', 'A', 'V', 'y', '4047', '3225', 'Q', 'T', 'u', '8033', 'p', 'H', '9693', 'o', '8549', '1739', 'P', '2305', 'F', 'U', 'Z', 'U', 'z', 'G', 'k', 'Z', 2951, 2807]