In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[9087, 9855, 'M', 'p', 6053, 9633, '1825', 'W', 'O', 'O', 'c', 'j', 'D', 'w', 4637, 'C', 7009, 'B', 'y'], ['I', 'M', 'g', 625, '1825', 'W', 'O', 'O', 'c', 'j', 'D', 'm', 'F']