D3113132322132322331323112331323211331311331323133311221123231121   >>    D311313232213232233132311233132321133131133132313331122112323112   <<    D3113132322132322331323112331323211331311331323133311221123231123   >>      D3113132322132322331323112331323211331311331323133311221123231122   >>