16-12=

12-5=

14-5=

20-13=

12-11=

14-3=

17-11=

17-5=

20-15=

11-9=

16-4=

15-12=

14-10=

14-7=

20-10=

15-1=

16-13=

13-10=

18-18=

16-11=

12-0=

18-10=

15-11=

16-1=

11-3=

20-2=

13-5=

17-17=

17-11=

20-0=

14-8=

19-1=

18-15=

13-4=

14-11=

20-1=

13-12=

18-6=

12-8=

19-5=

17-15=

19-17=

11-6=

11-3=

14-14=

13-10=

18-14=

16-10=

14-8=

15-9=