D33112221323133313133313132233131333132313223313231123313132322311   >>    D3311222132313331313331313223313133313231322331323112331313232231   <<    D33112221323133313133313132233131333132313223313231123313132322313   >>      D33112221323133313133313132233131333132313223313231123313132322312   >>