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while (<DATA>){ 
   print if ( /def/ .. /end/ );
...
  end
  AltimaCost, AltimaMpg = getCostAndMpg
  puts "AltimaCost = #{AltimaCost}, AltimaMpg = {AltimaMpg}"

  def mult(a,b)
    a * b
...
    mpg = 30
    return cost,mpg
  end