16-4=

18-14=

12-0=

15-10=

17-17=

15-1=

16-4=

12-0=

13-4=

12-1=

19-12=

11-5=

17-17=

12-2=

19-1=

14-13=

17-10=

13-8=

20-10=

17-0=

15-4=

16-1=

17-3=

12-3=

15-7=

20-3=

18-1=

17-1=

20-12=

11-11=

16-0=

20-6=

11-9=

17-8=

17-9=

18-15=

20-15=

20-13=

17-13=

12-4=

18-11=

13-0=

11-7=

11-11=

17-15=

15-0=

11-7=

11-10=

13-1=

18-18=