input: Write a function to determine if it is possible to create a rectangle with all sides having the same length by adjusting its length and width using any number of operations. If it is possible, return True; otherwise, return False. If the length and width are initially the same, return True.
  assert create_square(4, 4)==True
  assert create_square(5, 10)==False
  assert create_square(0, 0)==True
  assert create_square(1, 2)==False
  assert create_square(3, 6)==False
output: def create_square(length, width):
      return length == width