In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['W', 't', 9615, 1433, 'n', 5547, 's', '4119', '7113', 'n', 'B', 'S', '8025', 'g', '8547', 'R', '5029', 'l', 3603, 'C', 'D', 'm', 2287], ['u', 2403, 9195, 9497, '4119', '7113', 'n', 'B', 'S', '8025', 'g', '8547', 'R', '5029', 'N', 4327, 'E', 'C', 2287, 587, 'o', 'c', 2093]