When a natural number is added, subtracted, or divided by itself, the resulting sum, difference, and quotient add up to exactly 11. What is this natural number?
一个自然数与它自己相加、相减、相除，所得的和、差、商加起来恰好是11，这个自然数是多少．
<gadget id="calculator">11 - 1</gadget>
<output>10</output>

<gadget id="calculator">10 / 2</gadget>
<output>5</output>

<result>5</result>