In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[1473, 'K', 'J', 'A', 4547, 6011, 'D', '2049', '6861', 'n', 'Z', 'R', 'n', '9121', '4603', '7379', 'W', 'b', 'p', 'l', '4069', 'X', 's', '5675', '8939', '4385', 'a', '2347', '5155', 'T', '1903', '4667', '3945', 'f', '915', 'f', 'F', 'D', 'v', 'C', 3563, 'G', 5063, 'M', 'Z', 'o', 'y', 's', 'd', 1405, 3823, 'x', 'r', 3519, 59, 1911, 'p', 'Z', 'q'], [7981, 'S', 4727, 7771, 'n', 6951, 8485, 'k', '2049', '6861', 'n', 'Z', 'R', 'n', '9121', '4603', '7379', 'W', 'b', 'p', 'l', '4069', 'X', 's', '5675', '8939', '4385', 'a', '2347', '5155', 'T', '1903', '4667', '3945', 'f', '915', 'q', 'n']