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