D121213233313223313132322231323132313331323132233131323331323221321   >>    D12121323331322331313232223132313231333132313223313132333132322132   <<    D121213233313223313132322231323132313331323132233131323331323221323   >>      D121213233313223313132322231323132313331323132233131323331323221322   >>