9+5= 20-14= 10+2= 5+12= 2+6=
12+4= 17-3= 7+12= 14-6= 11-9=
5+9= 5+6= 15-11= 17-12= 13-2= 14-6=
1+2= 16-12= 5+9= 14-6=
15+2= 9+4= 7+9=
20-4= 14-3= 4+6=
20-5= 12-9= 6+2=
17+3= 19-6= 2+14=
20-8= 4+10= 7+2=
4+12= 3+1= 9+7= 12-5= 3+11= 1+8= 4+12= 6-3= 14-13= 9+6= 17-3= 10+3= 19-11= 19-1= 10-7= 8+3= 18-16= 3+15= 19-15= 9+7= 11-10= 13-2= 15-11= 17+1= 14-8= 1+18= 9+2= 1+14= 17-7= 18-17= 12+4= 7+1= 10-5= 6+12= 18-15= 9+3= 11-9= 7+12= 12+5= 9+2= 4+14= 20-8= 5+10= 14-11= 16-7= 14+3=
19-8= 18-8=
3+8=
14-1= 16+2=
17+2=
20-17= 7+13=
7-6=
15-9= 10+10=
18-15=
6-2= 3+14=