14 + 5 =
16 + 4 =
18 + 6 =
4 + 19 =
15 + 10 =
17 - 12 =
24 - 8 =
20 - 10 =
15 - 15 =
16 - 13 =
19 + 7 =
17 + 8 =
23 + 7 =
24 + 4 =
15 + 9 =
21 - 11 =
25 - 7 =
29 - 12 =
17 - 8 =
13 - 6 =

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