In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[4305, 'm', 'n', 7503, 'f', 295, 4617, 'r', 'j', 8329, 'e', 8513, 'S', 119, 'D', 'b', 'r', '1893', 'C', 'K', 'x', 'd', 'T', '2339', 'E', 'k', 'I', 'B', 'B', 'x', 'Z', 'x', 'i', 10007], ['y', 'c', 'D', 'b', 'r', '1893', 'C', 'K', 'x', 'd', 'T', '2339', 'E', 'k', 'I', 'B', 'B', 'x', 'z', 'B', 771, 7351, 'v']