D1212132333132233131323222313231323132313331322331323132322133112321   >>    D121213233313223313132322231323132313231333132233132313232213311232   <<    D1212132333132233131323222313231323132313331322331323132322133112323   >>      D1212132333132233131323222313231323132313331322331323132322133112322   >>