In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['E', 2729, 'd', 937, 1499, 'l', 3603, 'l', 's', 'j', '4501', 'o', 'Y', 'G', 'e', 'R', '5983', 'K', 'Z', 4817, 9237, 1871, 5875, 'd', 9621, 'L'], ['o', 'M', 's', 'G', 3579, 'K', 'B', 's', 'j', '4501', 'o', 'Y', 'G', 'e', 'R', '5983', 'E', 7271, 9943, 5433, 'w']