input: Write a function to modify the given Python program that prints 'Happy Holidays' 10 times instead of 'Hello World'. The function should take the original code as input and return the modified code as output.
  
  assert modify_holidays_program("for i in range(10):\\n    print('Hello World')")=="for i in range(10):\\n    print('Happy Holidays')"
output: def modify_holidays_program(code):
      return code.replace("Hello World", "Happy Holidays")