In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['C', 267, 4667, 7247, 583, 725, 7023, 9243, 'T', 3533, 8217, 4075, 751, 'B', 'u', 2203, 1117, 783, 'k', 'Y', 'm', 8267, 6983, 'D', 't', '7761', 'L', 'k', 'G', 'y', 'S', '659', 'M', 'v', 'g', '2511', 'E', '6585', '9485', '7489', '6519', 'h', '8233', 'x', 'l', 'f', '9327', 'F', 'u', '6263', 'c', 'O', 'V', 8937, 6767, 5957, 7221, 'C', 5283, 6835, 'S', 'g', 9809, 'N', 653, 'D', 3771, 'w', 'f', 2815, 8415, 'Q'], [311, 6401, 2583, 9899, 5331, 2753, 'q', 2525, 7921, 'N', 'T', 5219, 'Y', 'D', 't', '7761', 'L', 'k', 'G', 'y', 'S', '659', 'M', 'v', 'g', '2511', 'E', '6585', '9485', '7489', '6519', 'h', '8233', 'x', 'l', 'f', '9327', 'F', 'u', '6263', 'c', 'R', 'N', 9615, 9269, 1883, 'B', 7271, 1263, 'l', 2351]