34 + 3 =
18 + 14 =
17 + 18 =
23 + 7 =
23 + 18 =
40 - 13 =
38 - 21 =
19 - 9 =
29 - 13 =
19 - 15 =
17 + 7 =
13 + 12 =
18 + 5 =
11 + 19 =
23 + 16 =
27 - 15 =
12 - 10 =
19 - 14 =
45 - 15 =
18 - 3 =
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