D121213233313223313132322231323132313331323132233131323331323113121   >>    D12121323331322331313232223132313231333132313223313132333132311312   <<    D121213233313223313132322231323132313331323132233131323331323113123   >>      D121213233313223313132322231323132313331323132233131323331323113122   >>