def pop(self):
        for _ in xrange(self.q_.size() - 1):
            self.top_ = self.q_.pop()
            self.q_.push(self.top_)
        self.q_.pop()

    # @return an integer
dataset/ETHPy150Open kamyu104/LeetCode/Python/implement-stack-using-queues.py/Stack2.pop/original