In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[8227, 'Z', 'O', 2783, 'D', '2261', 'D', 'l', 't', 'v', 'F', 'D', '75', 'U', '9409', '6753', 'Y', 'N', 'K', 'T', 'P', '4345', 'm', 'r', 'g', 'O', 707], ['H', 5603, 2137, 'L', 'e', 8105, 6701, 5079, 'd', 'v', 'z', 'D', '2261', 'D', 'l', 't', 'v', 'F', 'D', '75', 'U', '9409', '6753', 'Y', 'N', 'K', 'T', 'P', '4345', 'm', 'u', 'r', 5785, 4443, 'S', 175, 3583, 'd', 645, 8933, 1823, 'x']