In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[387, 577, 'j', 7891, 'N', 'W', 'V', 'n', 'A', '9835', '7109', '1637', '6825', 'J', '4143', 'a', '253', '2905', 'R', '1387', 'W', '4577', 'U', 'y', 'O', 1627, 5805, 8111], ['P', 'u', 'g', 'M', 6277, 'p', 'U', 'G', 211, 'o', 'd', 'V', 'n', 'A', '9835', '7109', '1637', '6825', 'J', '4143', 'a', '253', '2905', 'R', '1387', 'W', '4577', 'B', 'j', 8827, 'A']