Lūk, jums, jauks cietais rieksts! Kādu uzdevumu risina šī python programmiņa?

    from operator import mul

    def modder(x):
        i = 0
        while x:
            i += 1
            (x, remainder) = divmod(x, 2)
            if remainder: yield i

    for i in xrange(1, 2 ** 9):
        set1 = set(modder(i))
        set2 = set(range(1,10)) - set1

        if sum(set1) == reduce(mul, list(set2), 1): 
            print str(set1)
            print str(set2)
            break