input: Write a python function to check if two strings are equal.
  assert check_strings_equal("hello", "hello") == "Equal"
  assert check_strings_equal("hello", "world") == "Not Equal"
  assert check_strings_equal("test", "test") == "Equal"
  assert check_strings_equal("Python", "python") == "Not Equal"
output: def check_strings_equal(str1, str2):
      if str1 == str2:
          return "Equal"
      else:
          return "Not Equal"