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