D3312121211331322331313232233132333132313133313113313232213311211   >>    D331212121133132233131323223313233313231313331311331323221331121   <<    D3312121211331322331313232233132333132313133313113313232213311213   >>      D3312121211331322331313232233132333132313133313113313232213311212   >>