In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[6603, 'o', 'z', 'Y', 'v', 2367, 4089, 'g', 4859, 5725, 'O', 9955, 'k', 7915, 'D', 'o', '5263', 'O', '9417', '3565', 'H', 'd', 'z', '6173', '795', '5567', 'b', '2611', 'S', 'F', '1625', '8549', '1609', 'y', '4439', '6753', '4267', 'G', 's'], [9925, 'k', 7009, 1879, 2707, 2115, 'g', 3565, 1901, 'S', 7569, 4021, 1323, 4165, 'T', 631, 'f', 6231, 1541, 1111, 'x', 909, 'D', 'o', '5263', 'O', '9417', '3565', 'H', 'd', 'z', '6173', '795', '5567', 'b', '2611', 'S', 'F', '1625', '8549', '1609', 'y', '4439', '6753', '4267', 'i', 'd', 3001, 2273, 1921, 21, 2355, 'j', 1421]