第 3501449 期
3 + 1 + 9 + 9 + 9 = 31
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| 万 | 4 + 28 + 42 + 69 | = 143 → 3 |
|---|---|---|
| 千 | 7 + 34 + 50 + 70 | = 161 → 1 |
| 百 | 19 + 35 + 54 + 71 | = 179 → 9 |
| 十 | 21 + 37 + 56 + 75 | = 189 → 9 |
| 个 | 25 + 41 + 63 + 80 | = 209 → 9 |