In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[7737, 2495, 'i', 9479, 'l', 5839, 5155, 'X', 4607, 'b', 'Z', '775', '4041', '1481', 'I', '667', '5687', '4695', 'u', '9489', 'u', '1881', 'w', '9887', 'c', 'X', 'd', '6447', '3737', 'U', 'i', '713', 'n', '3883', 'W', 'A', 's', 'z', 'X', 'e', 'S', 'P', 5459, 9737, 'F', 'q', 5105, 921, 1347, 'W', 'Q'], [8483, 'P', 5719, 'W', 1043, 'S', 'V', 'v', 'v', 2339, 'V', 'N', 'b', 'Z', '775', '4041', '1481', 'I', '667', '5687', '4695', 'u', '9489', 'u', '1881', 'w', '9887', 'c', 'X', 'd', '6447', '3737', 'U', 'i', '713', 'n', '3883', 'f', 9273, 'Q', 9647, 8553, 3451, 'B', 'Z', 2583, 7523, 9947, 's', 'n', 'F', 'x', 'm', 3039, 'n', 1151, 6321]