In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['o', 'W', 'U', 6147, 'T', 8823, 6369, 'W', 'S', 2021, 8251, 2949, 'S', 9991, 'Q', '7265', '313', '9883', '7189', 'P', '8597', 'h', 'G', 'a', 'I', '2337', '3207', '493', 'Z', 'a', 'U', 'g', '9823', 'I', 'X', '1255', 'y', '6829', 'y', 'h', 8805, 4337, 'N', 'L', 4647, 1087, 'F', 9607], [4585, 'f', 1455, 'm', 'W', 'z', 6563, 'C', 'Y', 4345, 'k', 2237, 6409, 'p', 2651, 'G', 4735, 'd', 5203, 'O', '7265', '313', '9883', '7189', 'P', '8597', 'h', 'G', 'a', 'I', '2337', '3207', '493', 'Z', 'a', 'U', 'g', '9823', 'I', 'X', '1255', 'y', '6829', 'y', 'x', 'I', 2435, 'H', 'N', 5235, 'A', 1941, 3153, 'd', 8387, 'A', 's', 7629, 'j']