50-20
20-5-6
5+2+8
96-7
14+3
6+6+2
5+7+9
54-5
85-5-2
10+5+8
52-9
10+10
24+24
28+3
20-8-4
49
48
21
17
15
30
23
14
43
20
8
31
78
89
9
