Adding, subtracting, and dividing a number with itself, and then adding the sum, difference, and quotient, the result is 161. What is this number?
一个数与自己相加，相减，相除，再把所得的和、差、商相加的结果是161，这个数是多少．
<gadget id="calculator">161 - 1</gadget>
<output>160</output>

<gadget id="calculator">160 / 2</gadget>
<output>80</output>

<result>80</result>