2 π 1 +

π 2 +

π 3 +

2 π 1

π 2

π 3

2 π 1 +

4 ( π 1 + , π 1 + )

2 ( π 1 + , π 2 + )

2 ( π 1 + , π 3 + )

4 ( π 1 + , π 1 )

2 ( π 1 + , π 2 )

2 ( π 1 + , π 3 )

π 2 +

2 ( π 2 + , π 1 + )

( π 2 + , π 2 + )

( π 2 + , π 3 + )

2 ( π 2 + , π 1 )

( π 2 + , π 2 )

( π 2 + , π 3 )

π 3 +

2 ( π 3 + , π 1 + )

( π 3 + , π 2 + )

( π 3 + , π 3 + )

2 ( π 3 + , π 1 )

( π 3 + , π 2 )

( π 3 + , π 3 )

2 π 1

4 ( π 1 , π 1 + )

2 ( π 1 , π 2 + )

2 ( π 1 , π 3 + )

4 ( π 1 , π 1 )

4 ( π 1 , π 2 )

4 ( π 1 , π 3 )

π 2

2 ( π 2 , π 1 + )

( π 2 , π 2 + )

( π 2 , π 3 + )

2 ( π 2 , π 1 )

( π 2 , π 2 )

( π 2 , π 3 )

π 3

2 ( π 3 , π 1 + )

( π 3 , π 2 + )

( π 3 , π 3 + )

4 ( π 3 , π 1 )

( π 3 , π 2 )

( π 3 , π 3 )