In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['z', 3331, 6625, 5543, 897, 'I', 3061, 'u', 'D', 3009, 1127, 'a', 'Q', 'L', 'r', 'I', 'H', 2371, 'w', 'Q', 'r', 'C', 'O', 'b', '3145', 'M', 'X', 'U', '5105', '7735', '6879', '1633', '8273', '4413', 'G', '7055', '3925', '2015', 'r', '4711', 'B', 'C', 'c', 'F', 'I', 9455, 'N', 'H', 6931, 1809, 'H', 'J'], [1761, 'Y', 'H', 'w', 'o', 7459, 'r', 'w', 'Q', 'r', 'C', 'O', 'b', '3145', 'M', 'X', 'U', '5105', '7735', '6879', '1633', '8273', '4413', 'G', '7055', '3925', '2015', 'r', '4711', 'B', 'x', 'u', 'F', 'Q', 1221, 2827, 1233, 7819, 'Z', 8923, 'P', 'H', 'z', 'T', 'm', 'v', 'n']