In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[3425, 'u', 'J', 'o', 519, 't', 'n', 4527, 7511, 'M', 'H', 'u', 'N', 1461, 4149, 7633, 'Q', 'Q', 'G', 'A', '4435', 'o', 'r', 'X', '2945', '7287', 'n', '639', '2927', 'I', '8245', '2953', 'G', '4193', '2847', '3237', '3691', '7411', 'W', '8787', 'w', 7843, 'v', 7129, 8669, 'Q', 'm', 'Q', 'd', 'z', 'x', 7997, 'm', 'L', 'L', 5419, 2671, 2755, 'P', 4769, 4487, 9829, 'g'], [5263, 1789, 'O', 857, 2145, 6341, 6385, 'Q', 'Q', 'G', 'A', '4435', 'o', 'r', 'X', '2945', '7287', 'n', '639', '2927', 'I', '8245', '2953', 'G', '4193', '2847', '3237', '3691', '7411', 'W', '8787', 'I', 6251, 'o', 'L', 'M', 'k']