第 3504291 期
7 + 4 + 9 = 20
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| A | 7 + 17 + 23 + 42 + 49 + 69 | = 207 → 7 |
|---|---|---|
| B | 10 + 18 + 28 + 44 + 52 + 72 | = 224 → 4 |
| C | 16 + 20 + 36 + 48 + 53 + 76 | = 249 → 9 |