D3132113313132333132333132312312111133132313232213223313231333132322121221   >>    D313211331313233313233313231231211113313231323221322331323133313232212122   <<    D3132113313132333132333132312312111133132313232213223313231333132322121223   >>      D3132113313132333132333132312312111133132313232213223313231333132322121222   >>