In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['q', 's', 1775, '9105', '8743', '8533', '3031', 'i', '4483', '9757', '4945', 'U', '6041', 'N', '6775', '4925', '1867', 'Z', 'H', '9923', 'U', 'R', 'm', 'N', 1587, 8543, 'q', 'R', 7393, 'j', 'o', 833, 8827, 'W', 'P', 1909], [6873, 'a', 1857, 'o', 6901, 4569, 9549, 4741, 9269, 9425, 6675, 't', 'E', '9105', '8743', '8533', '3031', 'i', '4483', '9757', '4945', 'U', '6041', 'N', '6775', '4925', '1867', 'Z', 'H', '9923', 'U', 'c', 5363, 'F', 3825, 'P']