In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['d', 5733, 'B', 'x', 'S', 9869, 8963, 3793, 'R', 'o', 'c', 5025, 2647, 'I', 'w', 's', '637', '4657', 'D', '8359', 'j', '5893', 'V', 'X', 'Q', '8713', 'r', 'K', 'F', '2017', '6015', '4643', 'Q', '1977', '6177', '1715', '9655', 'I', '4403', 'W', '9007', 'O', 'x', 'C', 'L', 8785, 7449, 3159, 5375, 'l', 9603, 'V', 'F', 'T', 1799, 'Z', 'S', 1395, 2063, 'y', 'n'], [9951, 57, 341, 191, 2263, 'z', 'k', 981, 'D', 'n', 's', '637', '4657', 'D', '8359', 'j', '5893', 'V', 'X', 'Q', '8713', 'r', 'K', 'F', '2017', '6015', '4643', 'Q', '1977', '6177', '1715', '9655', 'I', '4403', 'W', '9007', 'e', 1301, 'N', 'k', 5327, 4905, 'S']