D1212132333132233131323222313231323133313231322331323131133132322233221   >>    D121213233313223313132322231323132313331323132233132313113313232223322   <<    D1212132333132233131323222313231323133313231322331323131133132322233223   >>      D1212132333132233131323222313231323133313231322331323131133132322233222   >>