3+3
6
4 - 2
2
4 + 6
10
5-10
5
10+6
16
5 - 6
0
10+8
18
6-13
-1
12+6
10-6
4
12+7
19
67-7
7
20+12
32
12 - 6
23+6
29
100-100
32 + 12
44
25-15
15
45+12
57
20-15
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