In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['V', 9409, 'm', 'u', 'E', 4251, 5707, 6923, 'C', 6329, 'Q', 5803, 2391, 'u', 2697, 3899, 5759, 't', 'S', 'L', 't', 'D', '8031', 'b', 'k', 'N', '6935', 'P', '5381', '5035', 'z', 'L', 'C', 'y', 'w', 'B', 'i', 'O', 'U', 'b'], ['E', 'y', 'I', 2349, 'W', 7657, 'q', 'l', 5801, 'I', 't', 3293, 'Y', 'o', 7457, 'T', 'f', 4409, 4909, 't', 'S', 'L', 't', 'D', '8031', 'b', 'k', 'N', '6935', 'P', '5381', '5035', 'z', 'L', 'C', 'y', 'w', 'B', 'X', 'O', 'V']