In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['t', 'E', 'H', 'o', 'Q', 1217, 'W', 't', '33', 'B', 'Q', '9203', '605', '1991', '915', 'u', '1649', '2121', 'j', 'b', 965, 9869, 5025, 2579, 'J', 9679], ['w', 65, 91, 'y', 't', '33', 'B', 'Q', '9203', '605', '1991', '915', 'u', '1649', '2121', 'Z', 5671, 'Y', 'M', 3061, 'B']