In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[4199, 9627, 'J', 'H', 'J', 1611, 'M', 3541, 5331, 3337, 's', 8609, 1127, 'R', 't', 'b', 'W', 9221, 7765, 'f', 'C', 'F', '5927', 'c', '7521', '9689', 'd', '8247', 'C', 'S', 'n', '4409', 'w', '4481', '5875', 'y', 'L', 'f', 'L', 'e', '6269', '5799', 'M', 'x', '4431', 'G', 1665, 'U', 'P', 'H', 9129, 1805, 'n', 'G', 2361, 7543, 'z', 3335, 'V', 'U', 'M', 1439, 8609, 'h', 'W', 5393, 'K', 2675], [6379, 1011, 'g', 'l', 9679, 'k', 'p', 3445, 2695, 'm', 'k', 9769, 'p', 'j', 'R', 7941, 'j', 'M', 2589, 'C', 'F', '5927', 'c', '7521', '9689', 'd', '8247', 'C', 'S', 'n', '4409', 'w', '4481', '5875', 'y', 'L', 'f', 'L', 'e', '6269', '5799', 'M', 'x', '4431', 'z', 'q', 8581, 9111, 943, 'F', 'D', 651, 'd', 9345, 7511, 'S', 9115, 7803, 3023, 's', 't', 919, 7167, 201, 2797, 'K']