D3312121211331322331313232233132333132333132233132313232211233131323221   >>    D331212121133132233131323223313233313233313223313231323221123313132322   <<    D3312121211331322331313232233132333132333132233132313232211233131323223   >>      D3312121211331322331313232233132333132333132233132313232211233131323222   >>