D12121212121313231311331323112331323132313232213331323331323331313221121   >>    D1212121212131323131133132311233132313231323221333132333132333131322112   <<    D12121212121313231311331323112331323132313232213331323331323331313221123   >>      D12121212121313231311331323112331323132313232213331323331323331313221122   >>