In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[655, 'N', 4857, 'T', 2993, 8443, 2657, 'R', 'a', 'T', 'Z', 'x', 'e', '2983', 'B', 'v', 'R', 'd', 'O', '4049', '5077', '6109', 'o', 'l', 'y', 's', 'T', '9021', 'V', 'R', '2417', 'k', 2331, 1649, 9493, 3807, 'u', 7811, 'a', 'm', 'p'], [9287, 'i', 'z', 7447, 3135, 'C', 'Q', 'G', 't', 2703, 'D', 'x', 'x', 'e', '2983', 'B', 'v', 'R', 'd', 'O', '4049', '5077', '6109', 'o', 'l', 'y', 's', 'T', '9021', 'V', 'R', '2417', 'm', 'o', 7137, 827, 8033, 'H', 'y', 'a', 'W', 'l', 5589, 4981, 'd', 2597]