D3312121211331313331313232233132322331323132233132313331313123121121   >>    D331212121133131333131323223313232233132313223313231333131312312112   <<    D3312121211331313331313232233132322331323132233132313331313123121123   >>      D3312121211331313331313232233132322331323132233132313331313123121122   >>