In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['w', 6109, 5619, 'c', 'n', 1027, 8703, 'T', 'G', '503', '121', 'F', '7891', '3831', 'l', '2959', '6355', '1237', 'v', '9365', '3239', '6457', 'V', '6651', 'r', 'U'], ['s', 4397, 'a', 2079, 1929, 'T', 8795, 3991, 'n', 'G', '503', '121', 'F', '7891', '3831', 'l', '2959', '6355', '1237', 'v', '9365', '3239', '6457', 'V', '6651', 'M', 1481, 'u', 2845, 9781, 'B', 'W', 'F']