D3313123121113232223323132313231323221323132322331322331311331111   >>    D331312312111323222332313231323132322132313232233132233131133111   <<    D3313123121113232223323132313231323221323132322331322331311331113   >>      D3313123121113232223323132313231323221323132322331322331311331112   >>