In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['T', 'C', 'B', 'm', 'o', 7539, 'I', 'R', 'r', 'n', 2163, 'p', 'h', 'W', 'h', 1449, 9839, '3917', 'u', 'j', '9089', '1189', '5677', '4763', '1347', '7639', 'j', '7579', '5301', '6545', 'e', 'Z', 'g', '5379', '7247', '9', 'z', 'y', 'P'], ['e', 'I', '3917', 'u', 'j', '9089', '1189', '5677', '4763', '1347', '7639', 'j', '7579', '5301', '6545', 'e', 'Z', 'g', '5379', '7247', '9', 'f', 'g', 5507, 9699, 'J', 'F']