In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['l', 8445, 'i', 'c', 1693, 2523, 'V', 3123, 'V', '6669', '4223', 'l', 'Z', '2805', 'W', '5847', 'Q', '713', 'k', '8915', '3931', '9849', 'E', '7673', 'u', 'X', '3985', '1727', '2015', '1943', 'K', 'd', '931', 'b', 'd', 1705, 'x', 4269, 'r', 6721, 1475, 'D', 'i', 8127, 'z', 1615, 2959, 2747, 8623, 'p', 1885, 'G', 7219, 5301, 7863], ['B', 'L', 'T', 7549, 1075, 7927, 7059, 'G', '6669', '4223', 'l', 'Z', '2805', 'W', '5847', 'Q', '713', 'k', '8915', '3931', '9849', 'E', '7673', 'u', 'X', '3985', '1727', '2015', '1943', 'K', 'd', '931', 'b', 'i', 6989, 3273, 'f', 4709, 2475, 'y', 'j', 'c', 'M', 'H', 'X', 7183, 'S', 'u', 7691, 'v', 'y', 5837, 'e', 'W', 'C']