\overline{abcd} is a four-digit number, and \overline{abcd}+3b+c+8d=2012, what is the four-digit number \overline{abcd}.
\overline{abcd}是一个四位数，且\overline{abcd}+3b+c+8d=2012，则四位数\overline{abcd}为多少．
<result>1_927</result>