The Decision Sieve

Verification
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 __  ______                        __   _____  ______    __  
/_ ||  ____|    /\        /\      / /  | ____||  ____|  / /  
 | || |__      /  \      /  \    / /_  | |__  | |__    / /_  
 | ||  __|    / /\ \    / /\ \  | '_ \ |___ \ |  __|  | '_ \ 
 | || |____  / ____ \  / ____ \ | (_) | ___) || |____ | (_) |
 |_||______|/_/    \_\/_/    \_\ \___/ |____/ |______| \___/ 

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