D1212132333132233131323222313231323132313331322331323331311311321   >>    D121213233313223313132322231323132313231333132233132333131131132   <<    D1212132333132233131323222313231323132313331322331323331311311323   >>      D1212132333132233131323222313231323132313331322331323331311311322   >>