D33131132122132313132333132323213231323223313133313233313132322331121   >>    D3313113212213231313233313232321323132322331313331323331313232233112   <<    D33131132122132313132333132323213231323223313133313233313132322331123   >>      D33131132122132313132333132323213231323223313133313233313132322331122   >>