In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[9501, 'A', 's', 9267, 3615, 'C', 2013, 9113, '2109', '3519', 'k', '2259', '7735', 'W', '8599', '3009', '3821', '6425', 'B', 'V', 'z', 'O', 'u'], [9545, 8015, 4219, 9397, 6147, '2109', '3519', 'k', '2259', '7735', 'W', '8599', '3009', '3821', '6425', 'B', 'q', 'G']