第 3499529 期
6 + 7 + 7 = 20
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| A | 15 + 30 + 45 + 49 + 57 + 70 | = 266 → 6 |
|---|---|---|
| B | 16 + 32 + 46 + 54 + 61 + 78 | = 287 → 7 |
| C | 26 + 43 + 47 + 55 + 67 + 79 | = 317 → 7 |