D3312121211331322331313232233132333132313133313113313231323221322221   >>    D331212121133132233131323223313233313231313331311331323132322132222   <<    D3312121211331322331313232233132333132313133313113313231323221322223   >>      D3312121211331322331313232233132333132313133313113313231323221322222   >>