In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['w', 'b', 8269, 7919, 'K', 'v', 'Z', 'o', 's', 1967, 't', 2305, 7305, 6375, 'q', 4361, 'x', 'A', 'o', 'L', 'j', 'Y', 'v', 'z', '8703', 'J', 'q', '4233', 'L', '9681', 'D', 'e', 'O', 'R', 'c', '8513', 'P', 'U', 'T', 'M', 'G', 'v', 'q', '6673', 'L', 'j', 'w', 2659, 'r', 5605, 'H', 'x', 4827, 'r', 'i', 4843, 'f'], [879, 10031, 'O', 3027, 'o', 6859, 9291, 'Q', 'T', 'g', 'A', 2861, 'r', 'q', 4043, 21, 'Y', 'v', 'z', '8703', 'J', 'q', '4233', 'L', '9681', 'D', 'e', 'O', 'R', 'c', '8513', 'P', 'U', 'T', 'M', 'G', 'v', 'q', '6673', 'L', 'P', 'z', 2921, 'b', 4749, 1905, 'E', 2285, 'C', 6979, 'h', 8401, 'X', 'N', 2329, 'x', 'S', 361, 7667, 'a', 'R', 4575, 'i', 'c']