In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['h', 3903, 'C', 'l', 6641, 'a', 'g', 't', 'X', 297, 6583, '9603', 'd', '2597', 'X', 'G', 'y', 'n', '3923', '2951', 'c', 'k', 'a', 'g', 'u', 'Z', '1215', 'o', 'L', '387', '6653', '5605', '1865', '5111', '4273', 'v', 'T', 'Q', 5381, 2143, 'C', 'j', 2613, 7105, 'o', 'F', 'Z', 'v', 2927, 2281, 'J', 'd', 353, 's', 7655], [5637, 907, 6787, 5075, 77, 'n', 2905, 8265, 2853, 'y', 8725, 1929, 2621, 'c', 7645, 'd', 4951, 2501, 8051, 'Q', 5405, 'G', 'D', 'v', '9603', 'd', '2597', 'X', 'G', 'y', 'n', '3923', '2951', 'c', 'k', 'a', 'g', 'u', 'Z', '1215', 'o', 'L', '387', '6653', '5605', '1865', '5111', '4273', 'v', 't', 4867, 5409, 'S', 'A', 8519, 'h', 9873, 6331, 235, 3823, 7371, 'i', 7409, 'k', 'N', 'm', 8339, 'z', 'Z', 'E', 6849]