A pair of opposite sides of a parallelogram has a total length of 16 cm, and the sum of the lengths of the other pair of opposite sides is 10 cm. What is the perimeter of the parallelogram in cm?
一个平行四边形的一组对边共长16厘米，另一组对边的长度和是10厘米，这个平行四边形的周长是多少厘米．
<gadget id="calculator">16 + 10</gadget>
<output>26</output>

<result>26</result>