D1212132333132233131323222313231323132313331322331313231323133112221   >>    D121213233313223313132322231323132313231333132233131323132313311222   <<    D1212132333132233131323222313231323132313331322331313231323133112223   >>      D1212132333132233131323222313231323132313331322331313231323133112222   >>