In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['B', 't', 5771, 3595, 9629, 9007, 483, 'E', 'H', 8313, 'R', 'R', '8889', 'Z', 'h', '7109', 'p', 'O', '3313', '2871', '8623', 'y', 'k', 'P', 'l', 'y', '7359', 'C', 'm', 'a', 6945, 's', 4877, 4345, 4043, 69, 9725, 'B', 'w', 7187, 'P', 2231, 'L', 's'], ['X', 'o', 'i', 6637, 'z', 4373, 5545, 'y', 'y', 'A', 2791, '8889', 'Z', 'h', '7109', 'p', 'O', '3313', '2871', '8623', 'y', 'k', 'P', 'l', 'y', '7359', 'C', 'X', 'N', 'S', 'v', 3631, 'E', 4027, 'C', 6115, 6127, 'n', 'D', 'g', 'T']