In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['W', 'N', 'm', 1937, 'g', 6377, 5823, 'u', 975, 6197, 'a', 'W', 4261, 'd', 'a', 4485, 895, 2197, 'x', '751', 'k', 'H', 't', 'P', 'O', 'u', '5365', 'Q', 'T', '8963', 't', 'n', 'g', '4569', '2001', '4539', '5811', 'x', 'A', 'Z', '8501', '4697', 'j', 7057, 'q'], ['j', 'm', 5129, 5551, 'n', 'f', 'j', 2589, 2515, 4875, 1365, 'c', 1407, 9639, 4755, 'M', 1513, '751', 'k', 'H', 't', 'P', 'O', 'u', '5365', 'Q', 'T', '8963', 't', 'n', 'g', '4569', '2001', '4539', '5811', 'x', 'A', 'Z', '8501', '4697', 's', 4131, 'c', 2857, 'D', 'E', 'P', 2899, 'Q', 'f', 'i', 'u', 'E']