D121212121213132313113313231123313232223132313331311331323331323223321   >>    D12121212121313231311331323112331323222313231333131133132333132322332   <<    D121212121213132313113313231123313232223132313331311331323331323223323   >>      D121212121213132313113313231123313232223132313331311331323331323223322   >>