D3312121211331313331313232233132322331323132233132313232313231321   >>    D331212121133131333131323223313232233132313223313231323231323132   <<    D3312121211331313331313232233132322331323132233132313232313231323   >>      D3312121211331313331313232233132322331323132233132313232313231322   >>