AL__1S @ 2024-08-10 17:23:07
感觉以USACO题目中牛、农场、农场主john的出现频率，完全可以考虑在USACO这几个字母后面多加一个字母W（？
by AL__1S @ 2024-08-10 17:23:59
USACOW（
by guanyue7109 @ 2024-08-10 17:24:38
American's cow
by XQL67 @ 2024-08-10 17:25:10
USA-COW
by guanyue7109 @ 2024-08-10 17:29:09
American: COW!
by Kristeen @ 2024-08-10 17:30:11
orz
by Eva_91418 @ 2024-08-10 18:21:57
wow
（USA's COW）