In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['n', 3587, '837', '8779', 'D', 'J', '3131', '735', 'Z', 'B', 'Y', '4447', '4113', 'O', 'd', 'u', 'Y', 'v', '7563', 'b', 'd'], ['r', 'y', 'H', 'Q', 'c', 9933, 't', 'g', 2487, 4813, 'c', '837', '8779', 'D', 'J', '3131', '735', 'Z', 'B', 'Y', '4447', '4113', 'O', 'd', 'u', 'Y', 'v', '7563', 'A', 9885, 7833, 9793]