In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[3903, 8823, 7373, 8031, 'A', 3187, 9553, 'q', '309', '2203', '7173', 'd', 's', '5955', 'L', 'e', '4367', '7465', 'n', 'b', '739', '541', 'M', '9341', '7289', 'o', '5351', '3719', 'n', '4455', 'F', '1773', 'w', 'k', 51, 7619, 'E', 't'], [8435, 'g', 3547, 'c', 'm', 5915, 'l', 865, 4309, 'T', 'q', '309', '2203', '7173', 'd', 's', '5955', 'L', 'e', '4367', '7465', 'n', 'b', '739', '541', 'M', '9341', '7289', 'o', '5351', '3719', 'n', '4455', 'F', '1773', 's', 'r', 'p', 2821, 'G']