Ri

R (Ri)

S (Ri)

R (Ri) ∩ S (Ri)

Level

R1

1, 3, 11

1, 2, 7, 8, 9, 10, 12, 13

1

R2

1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13

2, 9, 10, 12, 13

2, 9, 10, 12, 13

R3

3

1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13

3

I

R4

3, 4, 11

2, 4, 6, 9, 10, 12, 13

4

R5

3, 5, 11

2, 5, 6, 9, 10, 12, 13

5

R6

3, 4, 5, 6, 11

2, 6, 9, 10, 12, 13

6

R7

1, 3, 7, 11

2, 7, 9, 10, 12, 13

7

R8

1, 3, 8, 11

2, 8, 9, 10, 12, 13

8

R9

1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13

2, 9, 10, 12, 13

2, 9, 10, 12, 13

R10

1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13

2, 9, 10, 12, 13

2, 9, 10, 12, 13

R11

11

1, 2, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13

11

I

R12

1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13

2, 9, 10, 12, 13

2, 9, 10, 12, 13

R13

1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13

2, 9, 10, 12, 13

2, 9, 10, 12, 13