In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[8889, 2447, 'l', 'L', 'v', '2623', '4545', 'P', '5253', '2505', '4889', 'X', 'f', '4527', 'D', 'S'], ['g', 'p', 'H', 'Y', 'l', 'L', 'v', '2623', '4545', 'P', '5253', '2505', '4889', 'X', 'f', '4527', 'V', 'z', 3629, 7617, 6607]