The 29th Olympic Games will be held in Beijing in August 2008, and it will be held every four years. How many years will the 50th Olympic Games be held?
2008年8月第29届奥运会在北京举行，按每四年举行一次，第50届奥运会将在多少年举行．
<gadget id="calculator">50 - 29</gadget>
<output>21</output>

<gadget id="calculator">4 * 21</gadget>
<output>84</output>

<gadget id="calculator">2_008 + 84</gadget>
<output>2_092</output>

<result>2_092</result>