factorSeven :: Integer -> String
factorSeven n =
    if n `mod` 7 == 0 then "Plong" else ""
factorSeven :: Integer -> String
factorSeven n =
    if n `mod` 7 == 0 then "Plong" else ""
factorSeven n =
    if n `mod` 7 == 0 then "Plong" else ""