In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['k', 953, 'q', 'f', '3505', 'M', '2689', '8075', 'B', 'x', '5919', '2603', 'z', '6783', '5541', 's', 'H', 'T', 'l', 'k', 'Q', 'N', 't', 'F', 'F', 'M', 9371, 1917, 9601, 6123, 'C', 3005, 'T', 'W'], [4891, 'C', 5667, 'p', 'm', 1063, 7559, 5637, '3505', 'M', '2689', '8075', 'B', 'x', '5919', '2603', 'z', '6783', '5541', 's', 'H', 'T', 'l', 'k', 'Q', 'N', 'v', 'B', 'C', 't', 'Y']