There are more than 100 parts in a pile, if there are 4 packages of 4, there are 2 more; 7 packages of 7, there are 3 more; 9 packages of 9, there are 5 more. What is the exact number of parts in this pile?
一堆零件有100多个，如果4个4个包装多2个；7个7个包装则多3个；9个9个包装则多5个．这堆零件准确数是多少个．
<gadget id="calculator">2 * 7 * 9</gadget>
<output>126</output>

<gadget id="calculator">9 - 5</gadget>
<output>4</output>

<gadget id="calculator">126 - 4</gadget>
<output>122</output>

<result>122</result>