D331212121133132233131323223313233313233313223313233231323221111   >>    D33121212113313223313132322331323331323331322331323323132322111   <<    D331212121133132233131323223313233313233313223313233231323221113   >>      D331212121133132233131323223313233313233313223313233231323221112   >>