In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[3703, 5187, 197, '8797', '5541', '1211', 'P', '8803', 'B', '8811', 'J', 'Y', 'm', '8695', '829', 'B', 'I', 'Y', 'G', '1195', 'N', '2695', 'T', 'l', 'q', 'w', 'U', 5699, 'g', 8703, 6743, 2671], [7105, 8287, 4891, 'w', 'E', '8797', '5541', '1211', 'P', '8803', 'B', '8811', 'J', 'Y', 'm', '8695', '829', 'B', 'I', 'Y', 'G', '1195', 'N', '2695', 'T', 'l', 'q', 'R', 6279, 'p', 'k', 'u', 9769, 'F', 'v', 'u', 'H', 'T', 'y', 5711, 'b', 2603]