In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['G', 'w', 3209, 'r', 'x', 't', 5645, 'd', 'E', '999', '6631', '8703', 'k', 'O', 'F', '9911', 'v', '4829', '5669', '7157', 'V', 'R', '6397', '6101', '7285', '5683', '8653', '5893', '3583', 'b', 'F'], [6305, 3997, 'c', 1297, 8359, 6565, 'I', 'B', 'm', 8521, 'E', '999', '6631', '8703', 'k', 'O', 'F', '9911', 'v', '4829', '5669', '7157', 'V', 'R', '6397', '6101', '7285', '5683', '8653', '5893', '3583', 'u', 6873, 'j', 'V', 63, 'O', 'C', 1971, 3039, 3625]