In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[7575, 3337, 'A', 's', 'A', 4037, 'X', 4433, 'w', '8853', 'h', 'q', 'Z', 'l', '4653', '6279', 'k', 'B', '6991', 's', '7399', 'Z', '8721', '8303', 'E', '8315', '5101', '463', 'f', 'c', 'U', 'O', 7533, 'x', 3049, 3221, 675, 'Y', 2811], ['c', 3813, 4389, 4771, 'N', 5023, 897, 'J', 'E', 3937, 'x', 'm', 8157, 'o', 'E', 'w', 'w', '8853', 'h', 'q', 'Z', 'l', '4653', '6279', 'k', 'B', '6991', 's', '7399', 'Z', '8721', '8303', 'E', '8315', '5101', '463', 'f', 'y', 'i', 'e', 7637, 8317, 'd', 'e', 'I', 8579, 2735, 'O', 8339, 'R', 'f', 'c', 'O', 'C', 947]