In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[3617, 2197, 'I', 1909, 5769, 9697, 'O', '4989', 'l', 'o', '8787', '6553', 'X', '7119', 'D', '3025', 'M', 'L', 'h', '8209', '9389', '4557', '2579', 'r', '705', '7449', 'v', 'H', 'o', 'k', 'c', 8149], [2099, 1891, 9941, 'z', 'm', 'S', 8669, 7397, 2853, 'g', 'Z', 6069, 6917, 'Q', 'n', 'X', '4989', 'l', 'o', '8787', '6553', 'X', '7119', 'D', '3025', 'M', 'L', 'h', '8209', '9389', '4557', '2579', 'r', '705', '7449', 'v', 'z', 7809, 'b', 'A', 'p', 7539, 1755, 'p', 8293, 9681, 'q', 9643, 'D', 7353]