A.3.148.23.8,128B.3.148.23.0,128C.3.148.23.0,126D.3.148.23.8,126
A.255.255.255.0B.255.255.255.128C.255.255.255.192D.255.255.128.0
A.16,24,8B.8,24,16C.8,16,24D.24,16,8