11-7=

16-10=

13-12=

14-1=

20-17=

18-5=

12-3=

18-6=

15-5=

19-17=

15-4=

11-7=

20-16=

11-8=

15-11=

16-16=

12-9=

16-15=

16-2=

19-12=

15-15=

14-5=

11-9=

11-3=

11-6=

16-15=

11-7=

14-13=

19-3=

15-6=

20-15=

18-2=

14-12=

14-3=

11-6=

13-1=

14-4=

16-10=

16-5=

18-11=

17-7=

16-2=

13-2=

11-6=

20-18=

16-15=

14-8=

15-15=

19-6=

16-6=