In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[4495, 3247, 'a', 'R', 519, 'R', 1135, 'V', 4565, 1339, 'L', 'b', '9211', 'O', 'j', 'O', '423', '6513', '5301', '4857', '4369', '1179', '4393', '6021', 'k', '2805', '4283', '1397', '7293', 'q', 'C', 'Q', 'z', '2159', 'Q', 'R', 'v', 163, 5615, 5325, 3097, 1261, 781, 'f', 'H', 'h', 'C', 'g', 'E', 'u', 'm', 'i', 'r', 8587], ['B', 's', 'L', 'b', '9211', 'O', 'j', 'O', '423', '6513', '5301', '4857', '4369', '1179', '4393', '6021', 'k', '2805', '4283', '1397', '7293', 'q', 'C', 'Q', 'z', '2159', 'Q', 'R', 'n', 'N', 'H', 'R', 's', 8933, 'u', 't', 'V', 'E', 1989, 7283, 5647, 'a', 'W', 'Z', 2183]