In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[4413, 'X', 1991, 4431, 9567, 7687, 'b', 5205, 's', 'o', 'T', 7699, 'Z', 9641, 2853, 8501, 'U', '5941', '8359', '5603', 'S', 'J', 't', 'M', '3055', 'p', 'r', 'G', '1991', 'G', '9313', 'Z', '7805', 'b', '2565', '489', '7865', 'r', 'V', 'A', 2871, 4639, 8345, 8179, 6521, 'i', 6795, 'D', 5991, 185, 'S', 'a', 'M', 4047, 'A', 'Y', 5157, 'K'], ['U', 'd', 'e', 'F', 'Q', 'v', 'R', 'L', 5851, 3591, 2767, 'k', 7749, 7769, 'a', 'U', '5941', '8359', '5603', 'S', 'J', 't', 'M', '3055', 'p', 'r', 'G', '1991', 'G', '9313', 'Z', '7805', 'b', '2565', '489', '7865', 'c', 'l', 9951, 'g', 'c', 'T', 6631, 9335, 'X', 3447, 1423, 'Q', 't', 'T', 2367, 7589, 6935, 6287, 'K']