def reverse_vowels(str1):
	
	vowels = ""
	for char in str1:
		if char in "aeiouAEIOU":
			vowels += char
	result_string = ""
	for char in str1:
		if char in "aeiouAEIOU":
			result_string += vowels[-1]
			vowels = vowels[:-1]
		else:
			result_string += char
	return result_string
def reverse_vowels(str1):
    vowels = ""
    for char in str1:
        if char in "aeiouAEIOU":
            _i_9 = 0
            while _i_9 < _i_9:
                vowels = vowels[:-1]
            vowels += char
    result_string = ""
   
    for char in str1:
        if char in "aeiouAEIOU":
            result_string += vowels[-1]
            vowels = vowels[:-1]
        else:
            result_string += char
    return result_string