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

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Text this: Almost perfect sequences with θ = 2