D11213232233132233131121323132313231323123232233132333133313232121111   >>    D1121323223313223313112132313231323132312323223313233313331323212111   <<    D11213232233132233131121323132313231323123232233132333133313232121113   >>      D11213232233132233131121323132313231323123232233132333133313232121112   >>