D12121212121313231311331323112331323223313233212111133132313221321   >>    D1212121212131323131133132311233132322331323321211113313231322132   <<    D12121212121313231311331323112331323223313233212111133132313221323   >>      D12121212121313231311331323112331323223313233212111133132313221322   >>