In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['a', 3339, 'd', 7667, 'i', 297, 7291, 6645, 4527, 'r', 'N', 1967, 1351, 9461, 'E', 6637, 'p', 1761, 'd', 'F', 'r', 'T', 's', 6765, 'Z', 'I', 'a', 'Q', 'S', 'k', '9407', 'O', '3215', 'p', 'z', '7361', '2695', '3681', 'K', 'D', 'X', '5725', 'u', '9937', 'l', 'M', 'B', 'x', '8917', 'n', '7117', '9883', 'f', '8893', 'P', 'C', 't', 9979, 7675, 'm', 'Y', 'c', 25, 'U', 5189, 'H', 1221, 'Q', 'G', 129, 'v', 2255], ['D', 'N', 7439, 'i', 1305, 3557, 'y', 'U', 'j', 9053, 'f', 'c', 7473, 1241, 'U', 'V', 'd', 8381, 5951, 'y', 'u', 'M', 'f', 'I', 'a', 'Q', 'S', 'k', '9407', 'O', '3215', 'p', 'z', '7361', '2695', '3681', 'K', 'D', 'X', '5725', 'u', '9937', 'l', 'M', 'B', 'x', '8917', 'n', '7117', '9883', 'f', '8893', 'P', 'E', 9055, 'U', 'r', 5959, 5249, 4103, 9523, 'v', 2101]