Minus Three Numbers
17-12-5=16-3-7=15-12-2=9-0-5=
5-1-4=17-7-1=17-3-11=14-2-4=
19-11-7=18-6-1=12-3-6=17-12-4=
13-4-2=13-5-2=18-6-11=12-6-1=
17-2-1=17-7-6=13-2-10=15-4-2=
19-15-2=9-3-1=11-3-1=14-2-5=
19-14-3=17-3-10=18-1-10=9-2-6=
15-7-1=13-2-1=18-1-16=6-2-2=
13-1-5=13-6-2=18-7-5=15-9-4=
19-4-3=19-13-4=19-4-2=17-3-12=
19-7-7=12-6-3=18-13-2=16-2-9=
16-5-9=15-9-1=16-4-7=12-9-2=
16-10-4=19-2-16=9-2-4=12-1-9=
11-2-2=10-5-4=9-4-3=18-2-4=
13-3-10=11-2-6=12-8-3=18-2-16=
12-7-4=17-11-6=13-3-8=19-7-5=
17-14-3=14-3-10=16-5-6=14-5-1=
16-5-5=17-1-3=19-5-1=16-1-12=
19-1-5=19-5-5=15-3-2=15-1-6=
14-4-2=17-2-5=18-11-2=18-13-3=
18-3-7=9-6-2=18-12-6=16-9-1=