D3313123121113232223323132313231323221323132322331322331323112121   >>    D331312312111323222332313231323132322132313232233132233132311212   <<    D3313123121113232223323132313231323221323132322331322331323112123   >>      D3313123121113232223323132313231323221323132322331322331323112122   >>