D33211132313231333131333132233132213233313113313232213331313231121   >>    D3321113231323133313133313223313221323331311331323221333131323112   <<    D33211132313231333131333132233132213233313113313232213331313231123   >>      D33211132313231333131333132233132213233313113313232213331313231122   >>