C1111233131211111211113313331333131211111132233133313331323133313232333132231   >>    C111123313121111121111331333133313121111113223313331333132313331323233313223   <<    C1111233131211111211113313331333131211111132233133313331323133313232333132233   >>      C1111233131211111211113313331333131211111132233133313331323133313232333132232   >>