D331212121133131333131323223313232233132313223313231321123231121   >>    D33121212113313133313132322331323223313231322331323132112323112   <<    D331212121133131333131323223313232233132313223313231321123231123   >>      D331212121133131333131323223313232233132313223313231321123231122   >>