D12121212121313231311331323112331323133313232211221123231323331111   >>    D1212121212131323131133132311233132313331323221122112323132333111   <<    D12121212121313231311331323112331323133313232211221123231323331113   >>      D12121212121313231311331323112331323133313232211221123231323331112   >>