In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[8989, 'N', 6967, 6453, 857, 'q', 'l', 5951, 8325, '369', 't', 'Z', 'Y', '9253', 'S', '6831', '423', 'e', '9103', 'P', 'y', 3893, 'l', 415, 3031, 'R', 2943], [1927, 1635, 'b', 'l', 'l', 6841, 'I', 2385, 'o', 7129, 'u', '369', 't', 'Z', 'Y', '9253', 'S', '6831', '423', 'e', '9103', 'P', 'e', 5251, 'M', 'm', 5497, 4137, 3565, 'B', 7315]