In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['E', 'n', 2449, 2443, 'f', 87, 'j', 'm', 'w', '9425', '7547', 'y', 'O', '8987', 'U', 'I', '9867', 'k', '543', '49', '4499', 'Q', 'Y', 'V', '7007', 'z', '8527', '8349', 'R', 'x'], [8057, 6335, 'b', 'L', 'G', 'e', 'F', 'U', 8529, 'y', 9375, 139, 'Y', 'v', 'w', 's', 'w', '9425', '7547', 'y', 'O', '8987', 'U', 'I', '9867', 'k', '543', '49', '4499', 'Q', 'Y', 'V', '7007', 'z', '8527', '8349', 'p', 'P', 3683]