D13231212111133131323123231323223313233313232222331323133313223311231   >>    D1323121211113313132312323132322331323331323222233132313331322331123   <<    D13231212111133131323123231323223313233313232222331323133313223311233   >>      D13231212111133131323123231323223313233313232222331323133313223311232   >>