In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[9653, 5737, 'W', 'd', 9939, 'Y', 6371, 's', 2409, 'v', 'E', '8041', '6303', 'W', 'm', 'h', 'm', 'z', 'L', '3019', 'u', 'i', 'T', 'D', 'C', 3803, 3165, 4175, 1009], ['a', 'u', 9053, 'a', 8291, 283, 'W', 785, 2797, 6677, 'b', '8041', '6303', 'W', 'm', 'h', 'm', 'z', 'L', '3019', 'u', 'i', 'T', 'P', 6165, 5621, 489]