In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['G', 'P', 7917, 4593, 1669, 'm', 5319, 2121, 8527, '9973', '4987', '1965', '5999', '3279', 'p', 'k', 'N', 'U', 'y', 'a', '9057', '211', '607', 'j', '5739', '4509', 'y', 'w', '1153', '617', '7787', 'C', 'n', '8497', 's', 'y', 'r', 617, 'O', 455, 'T'], ['I', 't', 1407, 'g', 'g', 2133, 63, 't', 'W', 'y', 10009, 'q', 5761, 6231, 1929, 'G', 6065, 6999, 3601, 3097, 9095, '9973', '4987', '1965', '5999', '3279', 'p', 'k', 'N', 'U', 'y', 'a', '9057', '211', '607', 'j', '5739', '4509', 'y', 'w', '1153', '617', '7787', 'C', 'n', '8497', 's', 'y', 'N', 'B', 6785, 7909, 8109]