In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['C', 2215, 7899, 'i', 'J', 4003, 5325, 'o', 'W', 2489, 'y', 'B', 6125, 'w', 9643, 853, 7761, 887, 5001, 7259, 7783, 'Z', 'C', 'f', 'J', '125', 'o', 'x', '7417', '4653', 'K', '4229', '4779', '2943', '4803', '5573', '7193', '3065', 'p', 'q', '3319', 'U', '3301', '5607', 'O', 'K', '3459', 'X', '3757', 't', 'D', 'I', 's', 'H', 'h', 7731, 'H', 'H', 571, 8113, 'i', 'V', 6361, 'R', 4027, 'O', 1535, 'E', 8385, 9277, 'x', 4407, 'H', 4271, 's', 4865, 'V'], [2343, 'G', 7473, 'A', 'T', 9811, 'Y', 5853, 'O', 4295, 'D', 2637, 7703, 6575, 9791, 649, 'i', 'F', 5123, 4723, 6149, 8039, 7187, '125', 'o', 'x', '7417', '4653', 'K', '4229', '4779', '2943', '4803', '5573', '7193', '3065', 'p', 'q', '3319', 'U', '3301', '5607', 'O', 'K', '3459', 'X', '3757', 't', 'D', 'Q', 'D', 'L', 'M', 'v']