In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['S', 385, 7023, 3983, 1915, 2433, 'g', 7631, '8751', 'f', 'V', 'r', '3829', 'K', '8353', '5799', '2623', '2397', 'F', '9303', 'u', '2305', 'e', '2409', 'o', 'U', '709', 'Z', '5459', 'W', 'B', '6501', 'K', 'o', '4207', 'e', 'r', 't', 'f', 'q', 'm', 'v', 'K', 8467, 1269, 'R', 7917, 2019, 'u', 2613, 6795, 'Y', 'U', 7007, 'H'], [8263, 'I', 'I', 'y', 'i', 'i', 'G', 's', 'c', 3461, 'H', 'H', 8149, 1137, 'u', 6691, 8973, 6427, 3107, 'I', 'A', 2647, 'n', 8225, '8751', 'f', 'V', 'r', '3829', 'K', '8353', '5799', '2623', '2397', 'F', '9303', 'u', '2305', 'e', '2409', 'o', 'U', '709', 'Z', '5459', 'W', 'B', '6501', 'K', 'o', '4207', 'e', 'r', 't', 'p', 'h', 6511, 'W']