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billpenn
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NoneVirtual Participations：2 contests
| Name | Start time |
|---|---|
| Petrozavodsk Winter 2020. Day 2. Japanese Contest. | 2025-09-25 08:09:56 |
| 第八届中国大学生程序设计竞赛 绵阳站（CCPC 2022 Mianyang Site） | 2025-09-18 08:04:09 |