# Write a function prefix that takes a string. It should return a new function that takes a second string. 
# When that second function is called, it will return a string containing the first string, a space, and the second string.
#
#    iex> mrs = prefix.("Mrs")
#    #Function<erl_eval.6.82930912>
#    iex> mrs.("Smith")
#    "Mrs Smith"
#    iex> prefix.("Elixir").("Rocks")
#    "Elixir Rocks"”

prefix = fn p ->
    fn s ->
        "#{p} #{s}" 
    end
end

mrs = prefix.("Mrs")
IO.puts mrs.("Smith")
IO.puts prefix.("Elixir").("Rocks")