In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[7655, 7623, 9193, 679, 3049, 'w', 5243, 't', 'x', 7949, 'j', 4563, 'i', '2273', '9893', '6969', '3881', 'B', 'C', 'O', 'R', 'n', '4865', 'h', '3225', 'i', 'R', 'V', '7335', 'S', '7633', '6381', 'Q', '737', 'P', 2839, 7125, 3947, 6313, 6097, 'O', 'Q', 9631, 2503], [8901, 2879, 8755, 6309, 'h', 'C', '2273', '9893', '6969', '3881', 'B', 'C', 'O', 'R', 'n', '4865', 'h', '3225', 'i', 'R', 'V', '7335', 'S', '7633', '6381', 'Q', '737', 's', 'm']