D1212132333132233131323222313231323133313231322331323233231323222331   >>    D121213233313223313132322231323132313331323132233132323323132322233   <<    D1212132333132233131323222313231323133313231322331323233231323222333   >>      D1212132333132233131323222313231323133313231322331323233231323222332   >>