input: Write a python function to validate email addresses and print their domain names.
  assert validate_email("test@example.com") == "example.com"
  assert validate_email("user.name@domain.co") == "domain.co"
  assert validate_email("invalid-email@.com") == "Invalid Email"
  assert validate_email("another.test@sub.domain.org") == "sub.domain.org"
output: def validate_email(email):
      import re
      pattern = r"^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$"
      if re.match(pattern, email):
          return email.split('@')[1]
      return "Invalid Email"