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