D331212121133132233131323223313233313233313223313232213231323211   >>    D33121212113313223313132322331323331323331322331323221323132321   <<    D331212121133132233131323223313233313233313223313232213231323213   >>      D331212121133132233131323223313233313233313223313232213231323212   >>