In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[4291, 4923, 'z', 3035, 'i', 5415, '6581', '267', 'Z', 'H', 'B', 'C', 'a', 'o', 'M', '7487', '8585', '4713', 'i', '7779', 'Q', 'V', '6803', 'c', 8057, 'd', 'i', 2123, 's', 3319], [7281, 8415, 'N', 'Q', 1407, 3349, 'Z', 'C', 8929, 2563, 'T', 6125, 'E', 6151, 'W', 'P', '6581', '267', 'Z', 'H', 'B', 'C', 'a', 'o', 'M', '7487', '8585', '4713', 'i', '7779', 'Q', 'V', '6803', 'y', 6975, 3693, 'q', 6349]