D33112221323133313133313132233131333132313223313231323212331121   >>    D3311222132313331313331313223313133313231322331323132321233112   <<    D33112221323133313133313132233131333132313223313231323212331123   >>      D33112221323133313133313132233131333132313223313231323212331122   >>