The number N is a string of decimal digits in which every digit is a difference between two other digits.

Examples: 333012 is such a number. So is 1278990.

What is the smallest pandigital number that possesses the above feature?

(In reply to

Solution by tomarken)

**ok**

"This satisfies the puzzle condition for all of the digits except the 0 and 9." **9 is covered by 9-0. 0 is not solved yet.**

" For the zero we just need to duplicate **one of the digits, " **

is correct.

**Need I say more?**