D3312121211331322331313232233132333132313133313113313231323223312131   >>    D331212121133132233131323223313233313231313331311331323132322331213   <<    D3312121211331322331313232233132333132313133313113313231323223312133   >>      D3312121211331322331313232233132333132313133313113313231323223312132   >>