[21,31,41,51,61,71,81,91,421,931,3311,5111,5511,
7711,8421,9731,9911,311111,444111,711111,777111,
993311,8811111,51111111,55551111,91111111,
93333311,99311111,99991111,441111111,6666611111,
7111111111,9333311111,411111111111,555111111111,
771111111111,777777111111,911111111111]
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