第 3499907 期
4 + 7 + 7 = 18
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| A | 21 + 32 + 42 + 54 + 63 + 72 | = 284 → 4 |
|---|---|---|
| B | 23 + 34 + 43 + 59 + 65 + 73 | = 297 → 7 |
| C | 26 + 36 + 51 + 61 + 69 + 74 | = 317 → 7 |