D13231212111133131323123231323223313233313232222331323133313233313221   >>    D1323121211113313132312323132322331323331323222233132313331323331322   <<    D13231212111133131323123231323223313233313232222331323133313233313223   >>      D13231212111133131323123231323223313233313232222331323133313233313222   >>