12-11=

13-10=

18-6=

18-8=

14-13=

15-1=

19-11=

20-17=

19-3=

20-15=

15-9=

18-10=

18-5=

12-10=

11-11=

17-8=

15-0=

11-5=

15-7=

12-6=

17-1=

20-5=

13-4=

17-9=

11-1=

16-0=

13-12=

11-0=

20-3=

18-18=

13-12=

20-13=

14-1=

15-12=

12-9=

17-17=

16-3=

15-13=

19-15=

17-11=

12-10=

16-0=

19-15=

13-12=

11-9=

11-0=

13-3=

13-9=

18-16=

15-11=