Point

0

1

2

3

4

5

6

7

8

0

0

18

4

16

6

17

19

9

7

1

18

0

14

15

18

13

5

14

16

2

4

14

0

12

5

11

14

13

4

3

16

15

12

0

15

14

3

15

17

4

6

18

5

15

0

5

17

7

8

5

17

13

11

14

5

0

12

9

13

6

19

5

14

3

17

12

0

13

14

7

9

14

13

15

7

9

13

0

13

8

7

16

4

17

8

13

14

13

0

volume of goods

0

24

12

15

18

21

9

18

24