In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['j', 8847, 8401, 7169, 89, 'h', 'T', 2661, 3061, 'a', 'e', 427, 1835, 'z', 8521, 'l', '3979', '615', '5827', 'y', '6439', 'T', 'r', 'R', 'b', 'm', '9767', 'C', '1199', 'a', '1215', 'H', '7905', 'j', 2697, 'I', 'b', 6369, 8975, 6851], ['M', 'A', 'Z', 'Q', 6385, 3373, 'l', '3979', '615', '5827', 'y', '6439', 'T', 'r', 'R', 'b', 'm', '9767', 'C', '1199', 'a', '1215', 'H', '7905', 'c', 'h', 'q', 'h', 'i', 10005, 'R', 5603, 'x']