D11213232233132233131121323132313231323123232233132333133313232212131   >>    D1121323223313223313112132313231323132312323223313233313331323221213   <<    D11213232233132233131121323132313231323123232233132333133313232212133   >>      D11213232233132233131121323132313231323123232233132333133313232212132   >>