In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['o', 3249, 'C', 'k', 'F', 9695, 3563, 'Y', 'j', 'm', 9951, 8573, 1739, 'u', 4567, 1849, 'v', '417', '3307', 'k', 'Q', '8473', 'a', 'L', '7379', 'L', 'L', '6717', 'f', '4409', '5955', '3221', 'p', 'x', 'p', '6887', 'v', '7149', '7847', 'i', '10005', '3599', 'K', 'i', '7841', '521', 'r', 2869], ['X', 'N', 'o', 'f', 'D', '417', '3307', 'k', 'Q', '8473', 'a', 'L', '7379', 'L', 'L', '6717', 'f', '4409', '5955', '3221', 'p', 'x', 'p', '6887', 'v', '7149', '7847', 'i', '10005', '3599', 'K', 'i', '7841', '521', 'q', 'C', 'q', 9129, 'u', 'W', 'A', 'K', 8719, 1741, 2895]