第 3498621 期
2 + 2 + 3 = 7
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| A | 15 + 25 + 33 + 53 + 59 + 67 | = 252 → 2 |
|---|---|---|
| B | 22 + 26 + 37 + 56 + 61 + 70 | = 272 → 2 |
| C | 23 + 27 + 41 + 58 + 66 + 78 | = 293 → 3 |