In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[3763, 9505, 'a', 'X', 's', 8195, 4961, 6055, 'J', 'i', 'c', '3131', '9673', 'Q', '9611', '5113', 'm', 'b', '6201', 'O', '3207', 'Q', 'd', 'M', 3039, 2973, 'w', 8531, 9347, 8969, 'l'], [4079, 'F', 617, 'o', 'E', 3723, 'A', 113, 'i', 'a', 4865, '3131', '9673', 'Q', '9611', '5113', 'm', 'b', '6201', 'O', '3207', 'Q', 't', 7001, 'f', 'd', 549, 'b']