In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['i', 'B', 'U', 1577, 'Q', 'C', 'd', 'j', 'a', 'g', '5463', '6239', 'k', 'v', 'S', '2741', 'i', 'd', '2741', '1001', '4107', 'e', 'O', 'b', '5725', 'M', '4283', '943', 'I', 'Y', 'k', 7055], [3815, 333, 7345, 'o', 't', 3545, 3499, 'A', 'J', 3329, 'f', 'w', 29, 'X', 'g', 'i', 'x', 'Z', '5463', '6239', 'k', 'v', 'S', '2741', 'i', 'd', '2741', '1001', '4107', 'e', 'O', 'b', '5725', 'M', '4283', '943', 'I', 'O', 8541, 'J', 8865, 'z', 'Z', 't', 79, 'J', 3639, 25, 'u', 8671, 'Z', 4671, 4561]