input: Write a python function to print the square of even values from a dictionary.
  assert print_even_squares({"a": 1, "b": 2, "c": 3, "d": 4}) == "4\n16"
  assert print_even_squares({"x": 10, "y": 21, "z": 30}) == "100\n900"
  assert print_even_squares({"m": 11, "n": 13, "o": 15}) == ""
output: def print_even_squares(d):
      result = []
      for value in d.values():
          if value % 2 == 0:
              result.append(str(value ** 2))
      return "\n".join(result)