8 + 4 = 15 - 7 = 14 - 8 = 5 + 7 =14 - 6 = 12 - 5 = 13 - 4 = 5 + 8 = 5 + 9 = 13 - 6 = 16 - 9 = 7 + 4 =15 - 6 = 13 - 9 = 9 + 2 = 9 + 6 =11 - 5 = 3 + 8 = 18 - 9 = 6 + 7 =7 + 9 = 11 - 9 = 11 - 6 = 14 - 5 =9 + 5 = 7 + 6 = 12 - 9 = 9 + 8 =6 + 8 = 12 - 4 = 9 + 7 = 13 - 8 =13 - 5 = 8 + 7 = 16 - 7 = 7 + 7 =8 + 3 = 17 - 9 = 11 - 2 = 1
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