def compose(*args):
    def composition(n):
        accum = n
        for func in args:
                accum = func(accum)
        return accum
    return composition

def carbonize(modulus, message):
    def beer(n):
        if type(n) == str: return n
            return message if n % modulus == 0 else n
    return beer

def freebeer(n):
    f = compose(carbonize(15, 'freebeer'),
                carbonize(5, 'beer'),
                carbonize(3, 'free'), str)
    return ' '.join(map(f, range(1, n + 1)))