D3312121211331322331313232233132333132333132233132313232211213231   >>    D331212121133132233131323223313233313233313223313231323221121323   <<    D3312121211331322331313232233132333132333132233132313232211213233   >>      D3312121211331322331313232233132333132333132233132313232211213232   >>