At first I think this problem is difficult, so I am surprised why so many people got AC...

I look at small case, and general it just for a try, it got AC!

the pro is very short...faint...

I don't know why all think than that problem is difficult.
I spent for it 10 minutes

Yu Yuanming please help me! Can you send your AC on my e-mail naraevsky@rambler.ru!!! Please

I agree with you. This problem is so easy!!! My AC solution size is 4 code lines :)

Damn, but how to do it?..

Each digit has itself code.
You have to determine summary code's length.

Just write some numbers manually... It's very easy to understand the decision.

So, I should try it in small numbers,
then I'll see the decesion and the task will be
solved? I looks like so difficult...

Write a program which converts decimal numbers to roman. You will see ;)

"I had nothing to say
and i get lost in the nothingness inside of me..."
Linkin Park says true.

Oh, God! AC!
I didn't expect me to solve this problem!
Thank U!