D12121212121313231311331323112331323223313233212111133132313331323221211231   >>    D1212121212131323131133132311233132322331323321211113313231333132322121123   <<    D12121212121313231311331323112331323223313233212111133132313331323221211233   >>      D12121212121313231311331323112331323223313233212111133132313331323221211232   >>