add an algorithm to spin some words

strings/reverse_long_words.py

@@ -0,0 +1,21 @@
+def reverse_long_words(sentence: str) -> str:
+    """
+    Reverse all words that are longer than 4 characters in a sentence.
+
+    >>> reverse_long_words("Hey wollef sroirraw")
+    'Hey fellow warriors'
+    >>> reverse_long_words("nohtyP is nohtyP")
+    'Python is Python'
+    >>> reverse_long_words("1 12 123 1234 54321 654321")
+    '1 12 123 1234 12345 123456'
+    """
+    return " ".join(
+        "".join(word[::-1]) if len(word) > 4 else word for word in sentence.split()
+    )
+
+
+if __name__ == "__main__":
+    import doctest
+
+    doctest.testmod()
+    print(reverse_long_words("Hey wollef sroirraw"))