In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['n', 'R', 'h', 'L', 1957, 4229, 8597, 'g', 7203, '5573', 'I', '4391', '8309', '9447', 'F', 'n', '9049', 'H', 'C', 'E', '5153', 'r', 'X', 'w', 's', 'm', '8763', '6167', 'a', 'z', '861', 'd', '9999', '4707', 'f', 3093, 5017, 3929, 'A', 'M', 'J', 'n', 'v', 'm', 'k', 'G', 'N', 'G'], [8845, 6415, 'K', 4833, 2559, 6655, 6625, 'Q', 'F', 167, 'M', 'F', 2083, 6403, 'n', 1243, 7381, 6323, 7507, 'y', 'p', 'W', '5573', 'I', '4391', '8309', '9447', 'F', 'n', '9049', 'H', 'C', 'E', '5153', 'r', 'X', 'w', 's', 'm', '8763', '6167', 'a', 'z', '861', 'd', '9999', '4707', 'S', 'Q', 7251, 'U', 4743, 'Q', 'm', 6307, 6989, 'd', 'D', 'U', 'T', 'f', 9737, 'u']