A certain eight-digit shape is \overline{2abcdefg}, its product with 3 is in the shape of \overline{abcdefg4}, then. What should be the seven-digit \overline{abcdefg}.
某八位数形如\overline{2abcdefg}，它与3的乘积形如\overline{abcdefg4}，那么．七位数\overline{abcdefg}应是多少．
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