In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[5085, 7659, 8313, 'u', 6225, 'a', 5533, 'M', 'y', 'F', 3539, 'F', 6303, 'M', 'K', 909, 6323, 5045, 's', 'J', 1849, 'R', 'J', 'E', 'q', '9289', 'U', '5843', 'v', 'd', '9429', '5365', '8787', 'Y', 'v', '7933', '8247', 'J', 'X', '5811', 'q', '9427', '1497', 'p', '5735', 'f', '9907', '1171', 'X', 'V', 'H', 'I', '8613', 'U', 'r', 'b', 'R', 9197, 9665, 1873, 'Y', 'I', 'D'], ['z', 669, 6979, 'S', 'P', 'd', 6163, 'B', 'Q', '9289', 'U', '5843', 'v', 'd', '9429', '5365', '8787', 'Y', 'v', '7933', '8247', 'J', 'X', '5811', 'q', '9427', '1497', 'p', '5735', 'f', '9907', '1171', 'X', 'V', 'H', 'I', '8613', 'M', 5767, 'u', 'O', 'i', 1393, 961, 5465, 9905, 1717, 3977, 'x', 'b', 'O', 'w', 'O', 'u', 7031, 'E', 467, 'R', 'a']