title: Ask the user if they want to repeat the same task again
body: <p>If the user gets to the end of the program I want them to be prompted with a question asking if they wants to try again. If they answer yes I want to rerun the program.</p>
  
  <pre><code>import random
  print("The purpose of this exercise is to enter a number of coin values") 
  print("that add up to a displayed target value.\n") 
  print("Enter coins values as 1-penny, 5-nickel, 10-dime,and 25-quarter.") 
  print("Hit return after the last entered coin value.")
  print("--------------------") 
  total = 0 
  final_coin = random.randint(1, 99)
  print("Enter coins that add up to", final_coin, "cents, on per line") 
  user_input = int(input("Enter first coin: "))
  total = total + user_input
  
  if user_input != 1 and user_input!=5 and user_input!=10 and user_input!=25:
     print("invalid input")
  
  while total != final_coin:
      user_input = int(input("Enter next coin: "))
      total = total + user_input
  
  if total &gt; final_coin:
      print("Sorry - total amount exceeds", (final_coin)) 
  
  if total &lt; final_coin:
      print("Sorry - you only entered",(total))
  
  if total== final_coin: 
      print("correct")
  </code></pre>