D12121212121313231311331323112331323223313331333131323132313131   >>    D1212121212131323131133132311233132322331333133313132313231313   <<    D12121212121313231311331323112331323223313331333131323132313133   >>      D12121212121313231311331323112331323223313331333131323132313132   >>