2 47+35-57=
3 30-24+24=
4 46-25+32=
5 8+46-31=
6 46+52-57=
7 52-47+42=
8 46-38+62=
9 57-44+62=
10 36-24+37=
11 34-3+47=
12 42-40+4
13 45-3+35=
14 46-5+9=
15 47+6-29=
16 36-15-8=
17 45-43-1=
18 45-27-9=
19 4+35+24
20 46+13+12
21 35+3+21
22 35-22-11
23 42-5-7
24 35-30-4
25 54+58-14
26 53+38-68
27 47+57+21
28 36+25-37
29 63-37-14
30 47-26-14