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 __   _    __   __   _____      _____     _____   
| || | ||  \ \\/ // |  __ \\   |  ___||  / ____|| 
| '--' ||   \ ` //  | |  \ ||  | ||__   / //---`' 
| .--. ||    | ||   | |__/ ||  | ||__   \ \\___   
|_|| |_||    |_||   |_____//   |_____||  \_____|| 
`-`  `-`     `-`'    -----`    `-----`    `----`

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Text this: Colourings of Cyclotomic Integers with Class Number One