A.8 B.6 C.4 D.2
A.202.101.1.64/26 B.192.19.11.5/23 C.127.0.0.1 D.224.0.0.2
A.172.16.104.0/21 B.172.16.112.0/21 C.172.16.120.0/21 D.172.16.124.0/21