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I've been having problems submitting contest problem's solutions and I don

I've been dealing with this problem and I have several questions. i hope that anyone can help me with this stuff.

1- ALWAYS the key string is 43 characters length? Or it can contain more than 43? (ex: more than ONE space between two words of the valid key string)

2- spaces are char(32) or they can ...

hi!

i've tryed several times to solve this.... but i've still having WA...

that's my code... can anyone help me???

aahhhh... it's in JAVA... :)

[java]
import java.io.*;
import java.util.StringTokenizer;

class Main
{
static String ReadLn ()
{
StringBuffer s = new StringBuffer("");
int car ...

Some little questions...

1. Hyphens can be anywere. (including two hyphens at the middle of the isbn number, like --0--1315--2447-X--???)

2. The ISBN cannot be less than 10 symbols long (of course, excluding hyphens) but can be more than 10 symbols. (what kind of symbols can i accept excluiding ...