Yao Ming is 2.26 meters tall, and a second-year elementary school student is 1.26 meters tall. Assuming that both of them walk around the equator of the earth, how many meters more will Yao Ming's head travel through the air than the second grader's head?
姚明身高2.26米，一名小学二年级学生的身高是1.26米．假设两人都沿着地球的赤道走一圈，姚明的脑袋比这名二年级学生的脑袋在空中多划过多少米呢？
<gadget id="calculator">2.26 - 1.26</gadget>
<output>1</output>

<gadget id="calculator">1 * 2 * 3.14</gadget>
<output>6.28</output>

<result>6.28</result>