In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[93, 'f', 'u', 9249, 'T', 'p', 6873, 'B', 'B', 's', 'b', 'l', 'I', 'g', 'j', '3227', 'R', '8029', '9163', 'L', '9767', '6831', 'p', '691', '8035', 'x', 'h', 'T', 'W', '6433', 'I', '553', 'd', 3135, 'Q', 'X', 'z'], [1857, 2927, 'V', 's', 'K', 6557, 'B', 2821, 'b', 'l', 'I', 'g', 'j', '3227', 'R', '8029', '9163', 'L', '9767', '6831', 'p', '691', '8035', 'x', 'h', 'T', 'W', '6433', 'I', '553', 'Y', 'O', 'O', 4669, 'P', 4077, 6925, 2931]