In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['C', 'f', 'A', 1889, 2291, 7175, 'Q', 'f', 'e', 'H', 1651, 1069, 'w', 'p', 'R', 7855, 4749, 7077, 'y', 'g', 'q', 2231, 'Z', 683, 9819, 7539, 2313, 3811, '5079', 'g', '7631', 's', '6033', 'W', 'Z', '2603', 'E', 'O', 'B', '5389', 'R', 'm', 'a', '3593', '5445', 'M', '1269', 'V', '2057', 'Y', 'E', 'M', '2187', 'i', 'w', 'L', 'w', 'N', 'a', 'd', 'V', 2971, 1715, 1255, 'o', 'b', 'F', 4135, 671, 5111, 4027, 6809, 'S', 6713], ['a', 'k', 8529, 'x', 'e', 'h', 'f', 3233, 'D', '5079', 'g', '7631', 's', '6033', 'W', 'Z', '2603', 'E', 'O', 'B', '5389', 'R', 'm', 'a', '3593', '5445', 'M', '1269', 'V', '2057', 'Y', 'E', 'M', '2187', 'i', 'w', 'L', 'w', 'J', 'L', 2011, 1405, 3473, 'G', 1027, 3861, 6311, 'j', 'A', 'q', 'A', 'p', 'A', 1449, 9899, 9063, 'p', 's', 'l', 1009, 'i', 3127, 'H', 'x', 2143]