7+2+6= 2+5+1= 8+3+3= 5+5+7=6+8+4= 4+9+5= 2+7+4= 9+4+6=
17-5= 17-3= 17-2= 17-1= 17-6= 17-4=
16-1= 16-3= 16-5=16-4= 16-0= 16-2=
17-2= 17-4= 18-6= 12-1= 7-5= 12-2=
9-3= 9-5= 18-2=11-1= 9-6= 9-1=
19-4= 19-6= 16-5=16-4= 16-0= 16-2=