In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['C', 5261, 'Z', '4133', 'i', 'q', 'W', 'G', '899', '3105', '6741', 'j', 'T', '8709', 'R', '8983', '121', '8303', '9721', 'd', 'u', 'B', 'W', 'a', 8677], ['U', 'L', 3063, 1759, 'Z', '4133', 'i', 'q', 'W', 'G', '899', '3105', '6741', 'j', 'T', '8709', 'R', '8983', '121', '8303', '9721', 'V', 425, 3853, 5911, 6609, 9653]