In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['K', 'r', 'O', 'W', 'o', 911, 4159, 'E', 'E', 'h', 'F', 'C', 'G', 2237, 605, 'Q', 8499, 'y', 3945, 'l', 8899, 'M', 6883, 'k', '8743', '7235', '4385', 'h', 'L', '2963', '3855', 'v', 'C', 'W', '6793', 'W', 'q', '5257', '2353', 'v', '2031', '2725', '3879', 'H', '4975', '1285', 'W', 'Y', '3237', 'r', 2381, 'S', 'P', 2497], ['p', 7259, 'B', 5401, 'k', '8743', '7235', '4385', 'h', 'L', '2963', '3855', 'v', 'C', 'W', '6793', 'W', 'q', '5257', '2353', 'v', '2031', '2725', '3879', 'H', '4975', '1285', 'W', 'Y', '3237', 'G', 4113, 'Z', 845, 1763, 3197]