Use the five numbers 1, 3, 5, 7, and 9 to form several composite numbers, and use each number exactly once; then, what is the smallest sum of these composite numbers?
用1，3，5，7，9这五个数字组成若干个合数，每个数字恰好用一次；那么，这些合数的总和最小是多少．
<gadget id="calculator">1 * 100</gadget>
<output>100</output>

<gadget id="calculator">3 + 7</gadget>
<output>10</output>

<gadget id="calculator">10 * 10</gadget>
<output>100</output>

<gadget id="calculator">100 + 100 + 5 + 9</gadget>
<output>214</output>

<result>214</result>