In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[8715, 'y', 'C', 405, 1437, 7375, 'W', 1019, 'V', 'd', 'w', 'j', 'e', '4199', '3027', 'K', '6047', '6595', '8027', '6729', '2973', '4363', 'M', '9985', 'W', '3123', 'F', 'y', 'v', '577', '8777', '6931', '1381', 'X', 'i', 5617, 'G', 2665, 5491, 485, 3083, 2771, 'd', 6241, 9601, 'B', 6439], ['W', 2605, 6255, 'U', 7851, 'J', 8731, 'v', 'S', 9477, 9383, 191, 2113, 153, 5225, 9295, 7925, 931, 'F', 'M', 'Q', 'N', 'w', 'j', 'e', '4199', '3027', 'K', '6047', '6595', '8027', '6729', '2973', '4363', 'M', '9985', 'W', '3123', 'F', 'y', 'v', '577', '8777', '6931', '1381', 'H', 6323, 773, 7185, 'V', 1209, 'C', 9051, 'q', 1985, 127, 'R', 'o', 9007, 8647, 1395, 5813, 2837, 1499, 7653]