In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[9509, 3631, 9165, 3049, 'k', 'w', 'K', 't', 'v', '29', '8035', 'v', 'N', '4965', 'e', '8733', 'l', 'T', 763, 8701, 'u', 7463], [3859, 'k', 1959, 'n', 2823, 7065, 1055, 'F', 5173, 'n', 'b', 'o', 'k', 'w', 'K', 't', 'v', '29', '8035', 'v', 'N', '4965', 'e', '8733', 'l', 'c', 'f', 'R', 'X', 'K', 'k']