In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['O', 7451, 'c', 'l', 'd', 1685, 969, 3915, 5755, 9909, 't', 2647, 1547, 47, 1357, '3751', 'N', 'e', 's', 'U', '4527', 'r', '2433', '3877', '7033', '1145', '3961', '9009', '895', '3339', '919', 'N', 'a', 'G', '875', 'x', '9761', 'm', 'e', '4989', '6643', '7301', 'v', 'v', 'V', 6177, 'j', 4795, 'Q', 'S', 'C', 'j', 'F', 6489, 'd', 5027, 'X', 'S', 't', 8815, 'B', 1207, 4287, 'k'], [6323, 3123, 'n', 957, 3045, 'k', 'D', 733, 'w', 1209, 'x', '3751', 'N', 'e', 's', 'U', '4527', 'r', '2433', '3877', '7033', '1145', '3961', '9009', '895', '3339', '919', 'N', 'a', 'G', '875', 'x', '9761', 'm', 'e', '4989', '6643', '7301', 'v', 'I', 4827, 6595, 8783, 5041, 1899, 'A', 7411, 'M', 'l', 9545, 'x', 3801, 't', 9619, 9755, 5333, 3885, 9653, 'z', 3467, 'x', 2893, 'o', 'c', 3299]