input: 
  Write a function to print out every number from 0 to 10, but with every number being multiplied by 2.
  
  for i in range(11):
   print(i*2)
  
  # Testing the function
  for i in range(22):
   assert i % 2 == 0, "Every number should be even"
  
output:     for i in range(11):
          print(i*2)
  
      # Testing the function
      for i in range(22):
          assert i % 2 == 0, "Every number should be even"