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1: 8 - (7 - 9) × 8
2: 8 - ((7 - 9) × 8)
3: 8 - (8 × (7 - 9))
4: 8 - 8 ×(7 - 9)
5: 8 + (8 × (9 - 7))
6: 8 + 8 ×(9 - 7)
7: 8 + (9 - 7) × 8
8: 8 + ((9 - 7) × 8)
9: (8 × (9 - 7)) + 8
10: 8 × (9 - 7) + 8
11: (9 - 7) × 8 + 8
12: ((9 - 7) × 8) + 8
2: 8 - ((7 - 9) × 8)
3: 8 - (8 × (7 - 9))
4: 8 - 8 ×(7 - 9)
5: 8 + (8 × (9 - 7))
6: 8 + 8 ×(9 - 7)
7: 8 + (9 - 7) × 8
8: 8 + ((9 - 7) × 8)
9: (8 × (9 - 7)) + 8
10: 8 × (9 - 7) + 8
11: (9 - 7) × 8 + 8
12: ((9 - 7) × 8) + 8
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