D33121212113313133313132322331323223313231322331323133313233311231   >>    D3312121211331313331313232233132322331323132233132313331323331123   <<    D33121212113313133313132322331323223313231322331323133313233311233   >>      D33121212113313133313132322331323223313231322331323133313233311232   >>