In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[3279, 'y', 'P', 'z', 'Q', 4043, 789, 5815, 'R', 4907, 'q', 'J', 755, 'P', 'K', 9347, 9373, 4963, 8241, 4569, 5743, 'k', '1879', 'k', '2359', '7235', 'Q', 'x', 'h', 'C', '8845', 'Q', '9305', 'Z', '641', 'O', 'S', '7801', '1457', 'z', 'F', '2455', '2865', '6759', 'e', 'Z', 511, 8577, 6487, 'D', 'k', 'N', 'F', 7597, 'W', 681], ['P', 7513, '1879', 'k', '2359', '7235', 'Q', 'x', 'h', 'C', '8845', 'Q', '9305', 'Z', '641', 'O', 'S', '7801', '1457', 'z', 'F', '2455', '2865', '6759', 'K', 'z', 9701, 9415, 'k', 2901, 'T', 'J', 'H', 7749, 'Q', 8821, 7731, 4005, 9665, 'r', 'W', 'R', 3505, 8403]