D121213233313223313132322231323132313331323132233132322331312323132322331   >>    D12121323331322331313232223132313231333132313223313232233131232313232233   <<    D121213233313223313132322231323132313331323132233132322331312323132322333   >>      D121213233313223313132322231323132313331323132233132322331312323132322332   >>