In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[7885, 'l', 4255, 'y', 'c', 'Z', 'T', 3651, 'c', 7925, 'j', 353, 'Q', 'r', 7163, 9159, '451', '8441', '3973', '345', '7169', 'j', 'E', '187', '6361', '7133', '893', '7723', '5337', 'Q', 'w', 'p', 'X', 8693, 9015, 'l', 1, 'S', 2681, 83, 8115, 'u', 'a', 1315, 477, 7521, 'L'], ['b', 6791, 'N', 6341, 5509, 6789, '451', '8441', '3973', '345', '7169', 'j', 'E', '187', '6361', '7133', '893', '7723', '5337', 'Q', 'w', 'p', 'P', 3231, 3985, 8365, 6111, 9325, 'j', 'v', 1763, 7939, 'M', 'm', 'o']