Archie and some good friends went to the teacher's house to play. During lunch, the teacher wanted to test everyone's calculation ability, so he asked a question: "Choose four numbers from the five numbers 31, 33, 35, 37, and 39. And calculate their products, and whoever calculates the fastest will get a mysterious gift." The other children immediately took out paper and pens and began to calculate, but Archie rolled his eyes and gave a correct answer after a little thought. If you also participated in this game, which 4 numbers would you choose, and what is the final product?
阿奇和几个好朋友去老师家玩，吃午饭时，老师想考考大家的计算能力，于是提出了一个问题："从31、33、35、37、39这5个数中选4个，并计算它们的乘积，谁算得最快谁就得到一份神秘的礼物．"其他小朋友马上找出纸笔开始演算，而阿奇眼珠一转，稍作思考就说出了一个正确答案．如果你也参与这个游戏中，你会选择哪4个数，最后算出的乘积是多少？
<gadget id="calculator">33 * 35 * 37 * 39</gadget>
<output>1_666_665</output>

<result>1_666_665</result>