The decimal point of a number is moved three places to the left first, and then two places to the right to get 12.34. What is the original number?
一个数的小数点先向左移动三位，再向右移动两位后得12.34，这个数原来是多少．
<gadget id="calculator">12.34 * 10</gadget>
<output>123.4</output>

<result>123.4</result>