D33211132313231333131333132233132213233313113313231333112211232321   >>    D3321113231323133313133313223313221323331311331323133311221123232   <<    D33211132313231333131333132233132213233313113313231333112211232323   >>      D33211132313231333131333132233132213233313113313231333112211232322   >>