In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['K', 'O', 4749, 7079, 6419, 'e', 'S', 3839, 7469, 'G', 381, 'L', 't', 'Y', 'k', 'G', 'p', 'R', 'L', '3787', '5821', '1871', 'C', 'J', '7693', 'k', 'R', 'y', 'y', 'E', 'c', 'y', 'P', '6135', 'Y', 'C', 2383, 'I', 'g', 1583, 'T', 'Q', 8425, 2321, 'T'], [4309, 'Z', 8377, 3159, 8951, 7301, 'x', 'B', 'c', 5097, 'T', 'e', 'T', 9541, 'G', 'A', 3387, 'K', 'z', 7341, 'L', 't', 'Y', 'k', 'G', 'p', 'R', 'L', '3787', '5821', '1871', 'C', 'J', '7693', 'k', 'R', 'y', 'y', 'E', 'c', 'y', 'P', '6135', 'Y', 'M', 'K', 7873, 191, 'q', 2295, 'M', 603, 7045, 377, 'b', 'k', 915, 's', 7125, 9701, 975, 'e', 9697, 5635]