D23312331311331311331322233231323132313232233132313221123313233313231323311231   >>    D2331233131133131133132223323132313231323223313231322112331323331323132331123   <<    D23312331311331311331322233231323132313232233132313221123313233313231323311233   >>      D23312331311331311331322233231323132313232233132313221123313233313231323311232   >>