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