4 + 7 =
11
10 - 7 =
3
23 + 23 =
46
9 + 3 + 2 =
14
12 - 6 =
6
15 + 16 =
31
27
23 - 7 =
16
12 + 12 + 13 =
37
39
50 - 5 - 10 =
35
223
45
75
34 + 27 + 12 -1 =
72
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