D12121212121313231311331323112331323132313232213331313232233221   >>    D1212121212131323131133132311233132313231323221333131323223322   <<    D12121212121313231311331323112331323132313232213331313232233223   >>      D12121212121313231311331323112331323132313232213331313232233222   >>