D3312121211331313331313232233132322331323132233132313231333132333121   >>    D331212121133131333131323223313232233132313223313231323133313233312   <<    D3312121211331313331313232233132322331323132233132313231333132333123   >>      D3312121211331313331313232233132322331323132233132313231333132333122   >>