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
"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, "
Need I say more?