D23312331311331313231323131111233132322132322331323133311221123231323221221   >>    D2331233131133131323132313111123313232213232233132313331122112323132322122   <<    D23312331311331313231323131111233132322132322331323133311221123231323221223   >>      D23312331311331313231323131111233132322132322331323133311221123231323221222   >>