In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['i', 'W', 'E', 'M', 7433, 'W', 'N', 'b', 'm', 'h', 3067, 'f', 3323, 'Y', 7365, 'C', 2483, '1429', 'k', 'e', 'e', '6321', '7393', 'I', 'I', 'Q', 'i', 'H', 'P', '8491', 'L', '2509', '7755', 't', '7299', '9453', '6233', 'R', 'A', '9769', 'a', 'Q', 8185, 'B', 8911, 3425, 'p', 't', 'K', 885, 'y', 9659], [3539, 271, 'g', 'y', 2777, 3139, 's', 3037, 'n', 6459, 'z', 1053, 1609, 'o', 8495, 1111, 3853, 9237, 'I', 4643, 1381, 'm', 'P', '1429', 'k', 'e', 'e', '6321', '7393', 'I', 'I', 'Q', 'i', 'H', 'P', '8491', 'L', '2509', '7755', 't', '7299', '9453', '6233', 'R', 'A', '9769', 'l', 'c', 'j', 's', 'o', 1515, 5237, 7265, 'H', 'm', 197, 'U', 9151, 'E', 9679, 's', 6697, 'F', 's', 1463, 'I']