When a number is divided by 3, the remainder is 2, when divided by 4, the remainder is 3, and when divided by 5, the remainder is 4. What is the number?
一个数除以3余2，除以4余3，除以5余4，这个数是多少．
<gadget id="calculator">3 * 4 * 5</gadget>
<output>60</output>

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

<result>59</result>