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