5-3=
2
12-2=
10
14-5=
9
17-13=
4
4-3=
1
12
17
22-12=
8-3=
5
14-3=
11
34-6=
28
34- 16=
18
8-6=
18-5=
13
32- 9=
23
45-18=
27
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