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+
+## Reference
+## https://www.w3resource.com/python-exercises/basic/python-basic-1-exercise-71.php
+## https://www.geeksforgeeks.org/reverse-vowels-given-string/
+
+## strInput = "Raku"  ## Example 1
+## strInput = "Perl"  ## Example 2
+## strInput = "Julia"  ## Example 3
+strInput = "Uiua"  ## Example 4
+
+arrVowel = [charLoop for charLoop in strInput.lower() if charLoop in ["a", "e", "i", "o", "u"]]
+
+strOutput = ""
+
+for nIndx, charLoop in enumerate(strInput.lower()):
+    if charLoop in ["a", "e", "i", "o", "u"]:
+        strOutput = strOutput + arrVowel[-1]
+        del arrVowel[-1]
+    else:
+        strOutput = strOutput + charLoop
+
+strOutput = strOutput.title()
+
+print (strOutput)