In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[7205, 'J', 'i', 'C', 'V', 'E', '8833', '2323', 'L', 'p', '3241', 'R', '6355', '1579', '4389', '5897', '3391', '2115', '3171', 'N', 'F', '6247', '4075', '9637', 'v', '7767', 'u', '8395', 'r', '4535', 'L', 'P', 'z', 'O', 4879, 2135, 7957, 8279, 'P', 'x', 'n', 'H', 'o', 'h', 'u', 'K', 5921, 2001, 1163, 's', 'u', 5945, 489, 'a'], [3587, 'S', 'h', 'Z', 'i', 'R', 'X', 'b', 'Y', 'u', 7393, 2143, 7221, 'h', 1339, 's', 2317, 4305, 4025, 6471, 'O', 'z', 'V', 'E', '8833', '2323', 'L', 'p', '3241', 'R', '6355', '1579', '4389', '5897', '3391', '2115', '3171', 'N', 'F', '6247', '4075', '9637', 'v', '7767', 'u', '8395', 'r', '4535', 'L', 'i', 'D', 7229, 'j', 1901, 'F', 'H', 6619, 'S', 'K', 6899]