D3312121211331313331313232233132322331323132233132313331323233311   >>    D331212121133131333131323223313232233132313223313231333132323331   <<    D3312121211331313331313232233132322331323132233132313331323233313   >>      D3312121211331313331313232233132322331323132233132313331323233312   >>