In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[7667, 'b', 5359, 'I', 'N', 621, 'Y', 'H', 2149, 8715, 5791, 'f', 1521, 'q', 8917, 'B', 4905, 'n', 'j', 1951, 'Z', 'P', '9091', '2069', 'B', '8589', 'Y', '577', 'I', '1027', '9915', 'o', 'I', '2205', '4491', '4019', '7911', 'K', '1783', '4367', '953', 'z', 'm', 'M', 'I', '6125', '3913', 'I', 'q', 'S', 'q', 'D', 7393, 'M', 9851, 'k'], [6425, 7267, 9663, 'n', 'P', 't', 'I', 2495, 6411, 'C', 3409, 'H', 8581, 6007, 'O', 'v', 'j', 5135, 4153, 9713, 9689, 'P', '9091', '2069', 'B', '8589', 'Y', '577', 'I', '1027', '9915', 'o', 'I', '2205', '4491', '4019', '7911', 'K', '1783', '4367', '953', 'z', 'm', 'M', 'I', '6125', '3913', 'I', 'q', 'R', 'I', 759, 4407, 't', 'j', 9133]