In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['L', 2051, '6637', '1619', 'R', 'R', '2047', 'E', 'L', 'z', '6267', 'F', 'd', 'H', 'L', '2249', 'P', 'C', 'f', 'c', 'M', 'w', 'e', 2035, 'S', 5957, 'Y', 'k', 'q', 7591, 'j', 3985, 'n', 'o', 9587, 'k', 5551, 'x', 8893], ['R', 'N', 7483, 8835, '6637', '1619', 'R', 'R', '2047', 'E', 'L', 'z', '6267', 'F', 'd', 'H', 'L', '2249', 'P', 'C', 'f', 'c', 'M', 'w', 'N', 'V', 'C', 'c', 7885]