11-4=
13-12=
12-11=
13-12=
11-6=
16-0=
17-15=
15-3=
17-5=
20-16=
14-6=
14-1=
19-11=
15-4=
17-15=
20-0=
20-10=
13-13=
16-5=
14-5=
11-7=
17-12=
19-1=
11-10=
13-1=
19-16=
19-3=
12-10=
13-4=
18-1=
13-10=
16-14=
13-3=
16-1=
12-10=
15-3=
16-4=
11-7=
12-9=
19-9=
16-6=
18-10=
18-9=
20-19=
12-5=
12-11=
15-6=
20-20=
15-12=
16-15=