A-B

(B₁)

(B₂)

(B₃)

(B₄)

(B₅)

(B₆)

(B₇)

(B₁)

1

1/2

2

1

1/3

1/2

1

(B₂)

2

1

1

2

1/3

1/3

1

(B₃)

1/2

1

1

1/2

1/3

1/3

2

(B₄)

1

1/2

2

1

1/2

1/3

1/2

(B₅)

3

3

3

2

1

1

2

(B₆)

2

3

3

3

1

1

2

(B₇)

1

1

1/2

2

1/2

1/2

1