In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[4757, 9423, 251, 6779, 1209, 4467, 3609, 'r', 'D', 5129, 'O', 3523, 'n', 'A', 'p', 'j', '3443', '3437', '3253', 's', 'T', 'w', 'V', '5333', '5153', '6755', '3591', 'T', 't', 'i', 1793, 8517], [53, 581, 'j', 8089, 'n', 'H', 1163, 4531, 'n', 'A', 'p', 'j', '3443', '3437', '3253', 's', 'T', 'w', 'V', '5333', '5153', '6755', '3591', 'T', 't', 'C', 7983, 4705, 2489, 5333, 'q', 'X', 1527, 'X']