In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['C', 57, 'y', '3663', '3125', '9117', 'T', 'L', 'q', '2137', 'K', 'g', 'o', '4851', '1251', '9103', '7833', '6381', 'P', '9805', 'y', 'C', 'g', 2633, 'A', 'A', 503, 'W', 'l', 'X', 'L', 'h', 5973, 'E', 'v', 7395, 305], ['i', 'k', 8567, 767, 'M', 7637, 7017, 'y', '3663', '3125', '9117', 'T', 'L', 'q', '2137', 'K', 'g', 'o', '4851', '1251', '9103', '7833', '6381', 'P', '9805', 'y', 'o', 3267, 'u', 'z', 5445, 'b', 'R', 9915, 3929]