D23112313233313223313132322331323132313331313223313231323311221   >>    D2311231323331322331313232233132313231333131322331323132331122   <<    D23112313233313223313132322331323132313331313223313231323311223   >>      D23112313233313223313132322331323132313331313223313231323311222   >>