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