In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[8937, 'k', 'O', 'p', 'C', 1375, 'i', 'X', 'l', 'L', 'u', 'C', 5395, 'n', 6919, 8055, 1091, '789', 'M', 'c', '431', '3497', '6001', '3601', 'Q', 'R', 'k', 'D', 'k', 'q', '343', 'b', 'j', '4465', '7421', '3927', 'G', '6047', '8287', '187', '2247', 'w', 'S', 'c', 'v', 'X', 'm', 'b', 'a', 'l', 'l', 'w', 'R', 'b', 'W'], [6245, 6001, 'm', 'L', 'o', 7883, 'v', 833, 'n', 9131, 'F', 913, 'z', 'A', 'p', 'v', 4669, 't', 'i', 5055, 8833, 2829, '789', 'M', 'c', '431', '3497', '6001', '3601', 'Q', 'R', 'k', 'D', 'k', 'q', '343', 'b', 'j', '4465', '7421', '3927', 'G', '6047', '8287', '187', '2247', 'w', 'S', 'c', 'v', 'X', 'k', 2275, 'p', 1367, 4807, 5581, 7895]