Reversing the digits of a number, the new number and the original number are inverse ordinal numbers. If the product of a number and its anti-sequence is 155827, what is the sum of this number and its anti-sequence.
把一个数的各位数字颠倒过来，所得的新数与原数互为反序数．一个数与它的反序数的乘积是155827，则这个数与它的反序数之和是多少．
<gadget id="calculator">197 + 791</gadget>
<output>988</output>

<result>988</result>