In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['p', 2153, 'W', 4827, 'g', 'q', 'o', 'Z', 'T', '4931', '3653', 'm', '9293', '863', '2331', 'M', '3743', '9193', '1011', '1997', '4857', '2643', 'Q', 't', '2733', '8439', 'q', '1723', 'v', 'I', 'I', 'l', 4311, 8379], [7917, 6503, 'C', 'f', 'U', 'H', 5557, 4697, '4931', '3653', 'm', '9293', '863', '2331', 'M', '3743', '9193', '1011', '1997', '4857', '2643', 'Q', 't', '2733', '8439', 'q', '1723', 'v', 'h', 9313, 'X', 6359, 'h', 7125, 'L', 'p', 4871, 5935, 'I', 'q']