new_contents: pos = 0
  velo = 1
  
  line = 10*[' ']
  
  # We can use the index of an line as the positions on the line
  # We can do so by using pos as a index for line
  # And we can represent a point with *
  for i in range(10):
      print("".join(line))
      line[pos] = '*'
      pos += velo
  
  print(pos)
  print("".join(line))
  
  # But we have a problem
  # By the end of the loop, "ten" points are drawn when in fact we wanted only "one" to move
subject: add part 7