In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['A', 'u', 4617, 'o', 7615, 'm', 3, 3093, '9159', '7659', 'b', '7471', 'l', 'I', '5527', '2433', 'p', 'x', 'n', '8309', '9497', '5831', '6527', 'N', '7235', '1787', 'U', '5329', 'L', 'm', 'z', 'G', 'z', 'p', 3487, 'e'], [4111, 'x', 8927, 3393, 'k', 'J', 3355, 'Z', 'k', 'g', 3451, 'Y', 'L', 'R', '9159', '7659', 'b', '7471', 'l', 'I', '5527', '2433', 'p', 'x', 'n', '8309', '9497', '5831', '6527', 'N', '7235', '1787', 'U', '5329', 'L', 'X', 'n', 'T', 'u', 'E', 'b', 'f', 1055, 2337, 1903, 'J', 7671, 4249, 5319, 6435]