In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['o', 'K', 'W', 'M', 'T', 'M', 'P', '3153', 'a', '9815', '9871', 't', '5415', '5365', 'q', 'R', 'k', '8667', 'N', 'w', 'G'], [6829, 'A', 'U', 'a', 'p', 'y', 'h', 'L', 7215, 'W', 'M', 'T', 'M', 'P', '3153', 'a', '9815', '9871', 't', '5415', '5365', 'q', 'R', 'k', '8667', 'N', 'L', 9881, 5359, 's', 'J']