The 29th Olympic Games was held in Beijing in 2008, if it is held every 4 years, how many years will the 50th Olympic Games be held?
第29届奥运会于2008年在北京举行，按每4年举行一次，则第50届奥运会将在多少年举行．
<gadget id="calculator">50 - 29</gadget>
<output>21</output>

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

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

<result>2_092</result>