There is a rectangle with a perimeter of 634 decimeters and a length of 200 decimeters. What is the width?
有一个长方形，周长是634分米，长是200分米，宽是多少？
<gadget id="calculator">634 / 2</gadget>
<output>317</output>

<gadget id="calculator">317 - 200</gadget>
<output>117</output>

<result>117</result>