12-2-2=

18-3-3=

11-2-1=

10+10+0=

0+17+1=

16-15-0=

20-14-4=

11-10-1=

20-7-0=

19-6-11=

12-0-0=

15-11-2=

3+15+2=

8+6+5=

11+3+6=

20-2-0=

16-0-2=

13-12-0=

13-0-10=

17+0+0=

12-7-5=

14-1-2=

6+13+1=

5+4+5=

15-1-0=

13-3-9=

17+0+0=

20-11-5=

19-18-0=

3+6+6=

12-0-3=

17-7-6=

5+4+9=

3+16+0=

13-5-3=

20-9-6=

16+0+3=

19+1+0=

4+12+1=

0+4+7=

10+6+3=

13+5+2=

13-6-1=

19+0+1=

5+14+1=

6+7+1=

4+12+2=

8+10+1=

13-10-2=

11-4-0=