In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[6067, 1115, 's', 'r', 2035, 9691, 7039, 'a', '1825', 'K', '9065', '6833', '7603', 'N', '4533', 'L', '3791', '4851', 'U', '5249', '3359', 's', 'j', '1893', '9981', '1981', 'U', 't', 'G', 't', 's', '5231', 'l', '2405', 'P', 'D', 5809, 'o', 'I', 'X', 'J', 'X', 'J', 219, 'R', 'A', 4729], ['y', 2543, 6453, 3445, 'z', 8453, 'N', 1541, 9443, 8653, 1885, 'Q', 5555, '1825', 'K', '9065', '6833', '7603', 'N', '4533', 'L', '3791', '4851', 'U', '5249', '3359', 's', 'j', '1893', '9981', '1981', 'U', 't', 'G', 't', 's', '5231', 'l', '2405', 'P', 'x', 'W', 8747, 921, 6069, 'V', 'F', 9001, 4447, 2637, 8655, 693, 'i', 'N']