Subtract a number from 173, multiply the difference by 8, and the product is 1232, find this number.
173减去一个数，所得的差乘8，积是1232，求这个数．
<gadget id="calculator">1_232 / 8</gadget>
<output>154</output>

<gadget id="calculator">173 - 154</gadget>
<output>19</output>

<result>19</result>