第 3502795 期
7 + 5 + 9 = 21
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| A | 2 + 14 + 22 + 34 + 56 + 69 | = 197 → 7 |
|---|---|---|
| B | 4 + 17 + 25 + 45 + 61 + 73 | = 225 → 5 |
| C | 12 + 20 + 32 + 54 + 64 + 77 | = 259 → 9 |