In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[8899, 'F', 'E', 2105, 8923, 'P', '8899', '6315', 'o', 'G', '6085', 't', 'u', 'H', 'y', 1829, 'l', 'z', 'Y'], ['y', 'Z', 581, 6305, '8899', '6315', 'o', 'G', '6085', 't', 'u', 'H', 'I', 'j', 7929, 1751]