In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['F', 'h', 'H', 'R', '2193', '4807', 'N', '8381', 'm', '9171', 'Y', '9853', '8269', '7815', 'G', 't', 'X', 'X', 'j', '9873', 'l', 'A', 'y', 'l', 3635, 4569, 5459, 5277, 'h', 'r', 'J', 'B'], ['H', 5529, 'd', 815, 'l', 387, 1175, 'F', 'd', 'u', 1093, 7545, 'S', '2193', '4807', 'N', '8381', 'm', '9171', 'Y', '9853', '8269', '7815', 'G', 't', 'X', 'X', 'j', '9873', 'l', 'S', 6403, 'x', 'Z', 9449, 6473, 'C', 'J', 833, 1659, 7297, 'x', 'v', 'w', 8043]