Find a four-digit number with four different digits, that is equal to the number formed by its digits in descending order minus the number formed by its digits in ascending order.
Sorry friends, I think there is a bit of confusion regarding the Language of the problem and so one of my friends had asked me to change it when it was in the queue but unfortunately when I logged on next, the problem was pushed up on the site. So I would like to clear everything here. I mean the problem is written now in a different form (but the meaning remains the same):
Here is how it goes:
There is a four-digit number,all of whose digits are different and is equal to the difference between the two numbers formed by its digits arranged in descending and ascending order.
I think this is alright.
Sorry for that again.
Rewording Of The Problem
