D12121212121313231311331323112331323132313232213331323223313112131   >>    D1212121212131323131133132311233132313231323221333132322331311213   <<    D12121212121313231311331323112331323132313232213331323223313112133   >>      D12121212121313231311331323112331323132313232213331323223313112132   >>