D23112313233313223313132322331323132313331313223313231323123123121   >>    D2311231323331322331313232233132313231333131322331323132312312312   <<    D23112313233313223313132322331323132313331313223313231323123123123   >>      D23112313233313223313132322331323132313331313223313231323123123122   >>