D33211132313231333131333132233132213233313113313231323232212321   >>    D3321113231323133313133313223313221323331311331323132323221232   <<    D33211132313231333131333132233132213233313113313231323232212323   >>      D33211132313231333131333132233132213233313113313231323232212322   >>