In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['G', 2557, 'x', 'A', 3773, 'U', 'u', 6081, 535, 8237, 3197, 'f', 'J', 3543, '5505', '3349', 'J', '519', 'L', '4347', 'n', '9767', '6533', 'w', '5111', '2503', '259', 'X', '3611', 'U', '5597', '1891', '6001', 'J', '2481', 'q', 'g', 'u', 1453, 'v', 'y', 't', 'k', 5357, 'G'], [5469, 'm', 't', 'f', 5639, 'd', 'c', 'V', 8551, 1945, 6983, '5505', '3349', 'J', '519', 'L', '4347', 'n', '9767', '6533', 'w', '5111', '2503', '259', 'X', '3611', 'U', '5597', '1891', '6001', 'J', '2481', 'G', 'q', 153, 'd', 4723, 'Q', 1269, 'f', 7743, 'R', 'm', 6485, 2343, 'x', 4125, 3949, 4635, 'T']