In order to welcome the "Six One" Children's Day, the students decorated the four sides of the classroom with ribbons (the four sides of the ground are not decorated). It is known that the length of the classroom is 8 meters, the width is 6 meters, and the height is 4 meters. How long is the ribbon?
为了迎接"六一"儿童节，同学们在教室的四周围装饰上彩带，(地面的四边不装饰)，已知教室的长为8米，宽为6米，高为4米，同学们至少需要多长的彩带？
<gadget id="calculator">8 * 2</gadget>
<output>16</output>

<gadget id="calculator">6 * 2</gadget>
<output>12</output>

<gadget id="calculator">4 * 4</gadget>
<output>16</output>

<gadget id="calculator">16 + 12 + 16</gadget>
<output>44</output>

<result>44</result>