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