2+3
5
5-2
3
7+2
9
8-2
6
2+4
5+6
11
7-3
4
24
10-7
7+4
3+9
12
10-6
5+27
32
13-6
7
9+15
7+9
16
19-4
15
13+17
30
27-9
18
16+27
10+6
21-7
23+13
36
30-15
14+17
31
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