The total length of the three pieces of cloth is 220 meters. The length of the second piece of cloth is three times that of the first piece, and the length of the third piece of cloth is twice that of the second piece. What is the length of the first piece of cloth in meters?
三块布共长220米，第二块布长是第一块的3倍，第三块布长是第二块的2倍，第一块布长多少米．
<gadget id="calculator">3 * 2</gadget>
<output>6</output>

<gadget id="calculator">1 + 3 + 6</gadget>
<output>10</output>

<gadget id="calculator">220 / 10</gadget>
<output>22</output>

<result>22</result>