5+5
10
3+3
6
10-1
9
5-4
1
9+10
19
4+5
9-2
7
6-3
17+2
10+5
15
12-2
18-4
14
11+13
24
29+1
30
20-6
25-3
22
13+11
23+4
27
27-4
23
29-12
17
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