title: Input assigned incorrectly
body: <pre><code>def roman_value(roman):
  
      roman_values = (('I',1), ('IV',4), ('V',5), ('IX',9),('X',10),('XL',40),('L',50),('XC',90),('C',100),
                      ('CD', 400), ('D', 500), ('CM', 900), ('M',1000))
  
      romanSymbol = input("enter roman symbols &lt; 3999: ")
  
      total=0
  
      for symbol,value in reversed(roman_values):
          while roman.startswith(symbol):
              total += value
              roman = roman[len(symbol):]
      return total
  
  if __name__=='__main__':
      for value in "MCMXC", "MMVIII", "MDCLXVI", "":
          print('%s = %i' % (value, roman_value(value)))
  
  roman_value()
  </code></pre>