D3312121211331322331313232233132333132333132233132313232211233131211   >>    D331212121133132233131323223313233313233313223313231323221123313121   <<    D3312121211331322331313232233132333132333132233132313232211233131213   >>      D3312121211331322331313232233132333132333132233132313232211233131212   >>