第 3506351 期
2 + 7 + 3 = 12
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| A | 4 + 16 + 36 + 44 + 56 + 66 | = 222 → 2 |
|---|---|---|
| B | 10 + 24 + 40 + 52 + 60 + 71 | = 257 → 7 |
| C | 13 + 28 + 43 + 54 + 61 + 74 | = 273 → 3 |