In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['f', 1935, 'D', 'h', 8075, 6905, 'G', 6401, 'H', 7255, 9973, 'I', 'E', 5869, 4443, 'X', 'H', 7473, 'E', 'Z', 'U', 'r', 'R', 9857, 'B', 'b', '1843', 'W', 'w', 'n', '5785', 'n', '4255', '7157', 'x', 'y', '7635', 'm', '2763', 'l', '5775', 'M', '8741', '3959', '9339', '4771', 't', 'w', 'k', 'T', '6359', '3741', '6215', 'M', 'U', 'n', 'K', 3063, 3599, 6009, 1711, 'n', 'Q', 2063, 3367, 'Y', 'X', 'w', 'e', 'H', 'D', 'q', 1003, 'f', 6615, 'L', 'H', 4807, 8727, 'U'], [6713, 1957, 685, 3523, 'A', 'x', 'f', 't', 5667, 'l', 'U', 'y', 'd', 239, 35, 3559, 5781, 8725, 'W', 'p', 'T', 'f', '1843', 'W', 'w', 'n', '5785', 'n', '4255', '7157', 'x', 'y', '7635', 'm', '2763', 'l', '5775', 'M', '8741', '3959', '9339', '4771', 't', 'w', 'k', 'T', '6359', '3741', '6215', 'M', 'U', 'n', 'z', 'G', 5263, 'F', 'x', 'n', 2417, 5885, 'W', 'F', 'g', 'X', 6703, 'P', 1071, 'P', 5483, 'I', 4527, 'b', 8097]