D3312121211331322331313232233132333132313133313113313231323221311311   >>    D331212121133132233131323223313233313231313331311331323132322131131   <<    D3312121211331322331313232233132333132313133313113313231323221311313   >>      D3312121211331322331313232233132333132313133313113313231323221311312   >>