In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[3615, 1385, 4267, 'z', 'F', 7195, 'U', 2665, '1263', 'O', '3761', '2545', 'K', 'E', 't', '5511', '6241', 'Q', '9683', '7135', '5469', '5269', '3021', '9499', 'C', 'C', 'y', 'm', 1901, 3491, 'i', 's', 2085, 'H', 'z', 5585, 8785, 6783, 'r'], ['g', 'E', 'Z', 1405, 7081, 'z', 363, 'p', 4559, 'C', 'F', 'B', '1263', 'O', '3761', '2545', 'K', 'E', 't', '5511', '6241', 'Q', '9683', '7135', '5469', '5269', '3021', '9499', 'C', 'C', 'n', 8931, 1253, 7959, 'w', 6185, 'm', 'o', 7699, 9577, 'u', 2061, 'i', 'm', 1689, 'j', 'i']