D33131132122132313132333132323213231323223313133313233313233112121   >>    D3313113212213231313233313232321323132322331313331323331323311212   <<    D33131132122132313132333132323213231323223313133313233313233112123   >>      D33131132122132313132333132323213231323223313133313233313233112122   >>