D1212132333131322331323331313131323132322331313132333132313232233132331121   >>    D121213233313132233132333131313132313232233131313233313231323223313233112   <<    D1212132333131322331323331313131323132322331313132333132313232233132331123   >>      D1212132333131322331323331313131323132322331313132333132313232233132331122   >>