In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[9779, 'C', 8839, 1257, 9375, 6513, 3027, 'c', 4415, 8523, 3873, '4225', '3367', 'c', 'f', '477', '7185', '6657', 'z', 'f', 'H', 'l', 'p', 'F', '7941', 'M', '4439', 'R', '9505', 's', 'R', 'x', 'w', 'Z', 993], ['H', 'e', 4231, 'R', 1623, 773, 2271, 'w', 'V', 8053, 3873, 'x', 'O', 'S', 311, '4225', '3367', 'c', 'f', '477', '7185', '6657', 'z', 'f', 'H', 'l', 'p', 'F', '7941', 'M', '4439', 'R', '9505', 's', 'R', 'x', 'w', 'v', 'F', 'L', 6355, 't', 1707, 'y', 2711, 'u', 5697]