class Prizes(object):
    def __init__(self, purchases, n, d):
        self.purchases = purchases
        self.n = n
        self.d = d
        self.i = 0
    def __iter__(self):
        self.i += 1
        return self
    def __next__(self):
        itera = self.i
        if self.purchases[itera] % self.n == 0 and self.purchases[itera] % self.d == 0:
            self.i = 1 + itera
            return [self.i]
        else:
            raise StopIteration
    def printi(self):
        print(self.i+1)

def superPrize(purchases, n, d):
    return list(Prizes(purchases, n, d))

print((superPrize([12, 43, 13, 465, 1, 13],2,3)))