The sum, difference, and quotient of a natural number added, subtracted, and divided by itself is 111. 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、商三个数相加之和是111，这个自然数是多少．
<gadget id="calculator">111 - 1</gadget>
<output>110</output>

<gadget id="calculator">110 / 2</gadget>
<output>55</output>

<result>55</result>