0 4
 1  1 0
 3  1 0
 13 1 0
 19 1 0

1 3
 0  1 0
 2  1 0
 14 1 0

2 4
 1 1 0
 3 1 0
 4 1 0
 7 1 0

3 3 
 0  1 0
 2  1 0
 12 1 0

4 3
 2 1 0
 5 1 0
 6 1 0

5 1
 4 1 0

6 1
 4 1 0

7 4
 2  1 0
 8  1 0
 12 1 0
 17 1 0

8 3
 7  1 0
 9  1 0
 12 1 0

9 2
 8  1 0
 11 1 0

10 1
 11 1 0

11 2
 9  1 0
 10 1 0

12 3
 3  1 0
 7  1 0
 13 1 0

13 3
 12 1 0
 14 1 0
 15 1 0

14 5
 1  1 0
 13 1 0
 15 1 0
 16 1 0
 17 1 0

15 3
 13 1 0
 14 1 0
 17 1 0

16 1
 14 1 0

17 3
 7  1 0
 18 1 0
 14 1 0

18 1
 17 1 0

19 2
 0  1 0
 20 1 0

20 1
 19 1 0