D331212121133132233131323223313233313233313223313233313231211111   >>    D33121212113313223313132322331323331323331322331323331323121111   <<    D331212121133132233131323223313233313233313223313233313231211113   >>      D331212121133132233131323223313233313233313223313233313231211112   >>