In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['l', 'm', 2691, 'n', 3775, 1229, 'K', 7285, 'H', 'N', 2179, 'p', 'Q', 'n', 'r', 's', 'T', 'P', 'a', 'u', 'C', '2671', '2503', '8911', '6633', '8745', '2241', 'G', '5241', '2509', 'B', '4919', '9103', 'Z', 'R', 'M', 'x', 't', '1667', 'L', '8897', 'r', 6085, 7111, 'l', 'p', 1587, 'I', 'v', 'F', 9535, 4517, 1765, 'b', 5159, 1093], ['g', 'c', 4051, 6457, 'P', 'g', 3651, 's', 'z', 'C', '2671', '2503', '8911', '6633', '8745', '2241', 'G', '5241', '2509', 'B', '4919', '9103', 'Z', 'R', 'M', 'x', 't', '1667', 'L', '8897', 'N', 8175, 681, 'o', 'l', 3429, 'v', 'A', 1481, 8333, 9081, 'z', 'E']