input: Write a function that takes two parameters: 'x' and 'y' and prints the output as "x is greater than y" when x is greater than y, otherwise "y is greater than or equal to x". If 'x' and 'y' are equal, it should also print "y is greater than or equal to x".
  assert print_comparison(5, 3)==None
  assert print_comparison(5, 5)==None
  assert print_comparison(2, 4)==None
output: def print_comparison(x, y):
      if x > y:
          print("x is greater than y")
      else:
          print("y is greater than or equal to x")