13-11=

16-4=

13-9=

11-7=

12-5=

20-0=

11-8=

17-2=

11-5=

20-7=

12-10=

18-17=

13-13=

19-5=

11-6=

12-0=

19-14=

18-13=

17-12=

19-1=

14-3=

14-12=

15-4=

13-7=

15-15=

19-9=

15-6=

12-10=

16-5=

17-2=

12-4=

16-12=

13-12=

20-8=

20-7=

14-9=

16-0=

13-1=

18-10=

17-14=

16-1=

16-14=

19-15=

11-7=

19-0=

11-8=

11-8=

12-12=

13-2=

17-17=