In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['y', 'S', 'm', 6295, 'M', 7243, 4069, 'C', 'R', 'q', 'M', 'q', 'L', '8099', 'u', 'F', 'Q', 'Q', 'k', '8149', 'g', '237', 'c', '2695', '3055', '3085', 'T', '6679', 's', 'L', '5869', 'm', '3323', 'O', 8969, 7019, 'C', 1313, 'h', 'E', 343], [9573, 'b', 'a', 'C', 't', 'z', 6823, 2081, 7697, 'U', 1253, 7509, 'C', 'R', 'q', 'M', 'q', 'L', '8099', 'u', 'F', 'Q', 'Q', 'k', '8149', 'g', '237', 'c', '2695', '3055', '3085', 'T', '6679', 's', 'L', '5869', 'm', '3323', 'L', 'B', 4563, 'j', 'O', 1603, 7877, 1401]