In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[4307, 'j', 2055, 'i', 7555, 'H', 'C', 4549, 6361, 5881, 'j', '6027', 'h', '2863', '355', 'F', '3513', 't', '6865', 'd', 'T', '7859', '4877', 'V', 2575, 'i', 'h'], [4517, 'E', 'u', 'C', 'x', 2559, 'V', 7099, 'p', 'o', 'Y', 'j', '6027', 'h', '2863', '355', 'F', '3513', 't', '6865', 'd', 'T', '7859', '4877', 'X', 7583, 2837]