D1212132333132233131323222313231323132333132323223313231323233221   >>    D121213233313223313132322231323132313233313232322331323132323322   <<    D1212132333132233131323222313231323132333132323223313231323233223   >>      D1212132333132233131323222313231323132333132323223313231323233222   >>