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module Main where
import Data.Char
import Data.List
import Control.Monad
looksay :: String -> String
looksay "" = ""
looksay s = chr (48 + length start) : head s : looksay rest
where start = takeWhile (== head s) s
rest = drop (length start) s
day9 :: IO ()
day9 = do
let input = "1113122113"
print $ length $ (iterate looksay input) !! 50
main = day9
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