In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['Q', 6161, 7343, 'i', '1093', '2981', '1897', 'j', 'S', '4369', '4545', 'S', '7127', '7773', '3803', 'd', 'H', '2095', 'l', '5639', 'f', '8239', 'W', 'a', 'd', 'b', 'W', 'p', 8701, 5111, 'M', 'A'], [4377, 'q', 'S', 'D', 4567, 'W', 'i', '1093', '2981', '1897', 'j', 'S', '4369', '4545', 'S', '7127', '7773', '3803', 'd', 'H', '2095', 'l', '5639', 'f', '8239', 'C', 9633, 'G', 'L', 'f', 127, 4887, 'Y', 'F', 3347, 9191, 1407, 1691, 'e', 1285, 'D']