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- [코드포스 600] 1220A - Cards 2019.12.30
- [코드포스 600] 1186A - Vus the Cossack and a Contest 2019.12.26
- [코드포스 600] 959A - Mahmoud and Ehab and the even-odd game 2019.12.25
- [코드포스 600] 935A - Fafa and his Company 2019.12.18
- [코드포스 600] 996A - Hit the Lottery 2019.12.17
- [코드포스 600] 1097A - Gennady and Card Game 2019.12.16
- [코드포스 600] 1154A - Restoring Three Numbers 2019.12.15
- [코드포스 600] 785A - Anton and Polyhedrons 2019.12.14