D121213233313223313132322231323132313331323132233131323331323232211   >>    D12121323331322331313232223132313231333132313223313132333132323221   <<    D121213233313223313132322231323132313331323132233131323331323232213   >>      D121213233313223313132322231323132313331323132233131323331323232212   >>