In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['O', 'E', 7641, 459, 'Z', 2563, 4439, 'W', 6063, 891, 'c', 'p', 67, 8993, 'Y', 8527, 4243, '4171', '1531', 'H', '481', '7073', '6155', 'N', 'i', 'f', 'L', 'g', 'N', 'b', '2337', '7365', 'y', 'J', 'L', 'y', '7525', '2633', '6929', 'v', 979, 'p', 'V', 3017, 6979, 4949, 'c', 2651, 'v', 9307, 'j', 'S', 'Q', 2651, 99, 7451], [671, 1025, 1955, 2811, 'Y', 'p', 'c', 6409, 'y', 'B', 1261, 6127, 5563, 'X', 9303, 'o', 5317, 3639, '4171', '1531', 'H', '481', '7073', '6155', 'N', 'i', 'f', 'L', 'g', 'N', 'b', '2337', '7365', 'y', 'J', 'L', 'y', '7525', '2633', '6929', 'p', 119, 2899, 'm', 'H', 3037, 'N', 7197, 527, 'p', 'L', 'X', 6371, 'a', 145, 'G', 5553]