input: Write a python function to prompt the user to enter 10 different strings and return them as a list.
  assert get_strings() == ["string1", "string2", "string3", "string4", "string5", "string6", "string7", "string8", "string9", "string10"]  # assuming user input
  assert get_strings() == ["apple", "banana", "cherry", "date", "elderberry", "fig", "grape", "honeydew", "kiwi", "lemon"]  # assuming user input
output: def get_strings():
      strings = []
      while len(strings) < 10:
          user_input = input(f"Enter string {len(strings) + 1}: ")
          if user_input not in strings:
              strings.append(user_input)
      return strings