new_contents: def reverse_string(string):
    for i in range(len(string) - 1, -1, -1):
      print(string[i], end="")
    print()
  
  def main():
      reverse_string("this was a triumph")
      reverse_string("hello world")
      reverse_string("42")
    
  if __name__ = "__main__":
    main()
  
subject: Create main.py