In a basket of small balls, the number of 3 is 3, the remaining 2, the number of 4 is 4, the remaining 3, the number of 5 is 5, and the remaining 4, what is the minimum number of small balls in this basket.
一篮小球，3个3个的数，余2个，4个4个数，余3个，5个5个数，余4个，这篮小球最少是有多少个．
<gadget id="calculator">3 * 4 * 5</gadget>
<output>60</output>

<gadget id="calculator">60 - 1</gadget>
<output>59</output>

<result>59</result>