In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[2069, 1955, 1481, 2457, 5555, 'O', '7441', '5091', '6097', '7657', '3699', 'x', 'S', '5947', 'D', '6217', 'Q', '9691', 'v', '2789', '9439', '2785', 'v', '7253', 'O', '6655', 'H', 'K', '3081', 'o', 'O'], [6445, 'a', 'O', 9099, 1797, 'A', 'O', '7441', '5091', '6097', '7657', '3699', 'x', 'S', '5947', 'D', '6217', 'Q', '9691', 'v', '2789', '9439', '2785', 'v', '7253', 'O', '6655', 'H', 'K', '3081', 'n', 'o', 'H', 2319, 'l', 'l', 947, 331, 'l', 9199, 141]