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ZeroJudge D267: Letter Frequency

ZeroJudge C044: What's Cryptanalysis

ZeroJudge A743: List of Conquests

ZeroJudge A584: 親等關係

ZeroJudge N327: The Tower of Names

ZeroJudge E578: Decode the Mad man

ZeroJudge C012: Tell me the frequencies!

ZeroJudge C054: WERTYU

ZeroJudge A271: 彩色蘿蔔