In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['R', 'r', 153, 'P', 1715, 757, 'K', 685, 1275, '9653', '3305', '853', 's', 'f', 'y', 'v', 'd', 'E', '4893', '9515', 'O', '9527', 'R', 'C', '8621', 'P', 'O', 's', '1455', '5259', '5561', '5147', 'G', 'e', 'l', 8075, 'x', 3879, 'g', 1215, 2387, 'E', 9305, 'L', 't', 'B', 7409, 7623, 7913], ['A', 'P', 'm', 5825, 'S', 2069, 7235, 4509, 'K', 6535, 979, 'f', 9051, 2423, 'R', 'l', 'q', 9429, 'l', 803, 'j', 2081, 5321, '9653', '3305', '853', 's', 'f', 'y', 'v', 'd', 'E', '4893', '9515', 'O', '9527', 'R', 'C', '8621', 'P', 'O', 's', '1455', '5259', '5561', '5147', 'G', 'e', 'z', 9157, 5891, 'g', 'z', 707, 4039, 293, 'S', 'B', 'b', 2399, 'l', 1277, 'F', 3399, 1459]