In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[4335, 3391, 7141, 2865, 6755, 6799, 8841, 'Y', 5017, 'D', 1245, '5599', 'V', 'u', 'W', 't', 'M', 'D', '9539', '5043', '6173', '8011', '801', 'M', 'Z', 'w', '8551', 'W', 's', '9455', 'h', '3495', 'F', 's', '423', 'H', '5857', 'Q', 's', 'a', 3021, 'T', 'E', 'M', 7871, 5361, 'i', 4985, 'b', 'I', 8099, 8753], ['j', 'm', 4383, 4361, 469, 7563, 'K', 'o', 4435, 7625, 1051, 'l', 'l', 'U', '5599', 'V', 'u', 'W', 't', 'M', 'D', '9539', '5043', '6173', '8011', '801', 'M', 'Z', 'w', '8551', 'W', 's', '9455', 'h', '3495', 'F', 's', '423', 'H', '5857', 'Q', 's', 'p', 'U']