def riocontra(s):

    rr = ''
    words = s.split()

    consonants = string.ascii_lowercase
    for wovel in ['a', 'e', 'i', 'o', 'u']:
        consonants = consonants.replace(wovel, '')

    for word in words:
        if len(word) > 3:
            input = SonoriPy(word)
            out = [input[-1]] + input[:-1]
            ret = ''.join(out)
            if ret[-1] in consonants:
                ret = list(ret)
                ulti = ret[-1]
                penulti = ret[-2]
                ret[-1] = penulti
                ret[-2] = ulti
                ret = ''.join(ret)
            rr += f' {ret}'
        else:
            rr += f' {word}'
    return rr.strip()