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ROMANCAL  Roman calculator 
Wersja polska  English version 
Given string a and string b your task is to calculate sum, difference, product, quotient or remainder depending on given char c.
Input
The first line of the standard input contains one integer t (t<101) which is the number of test cases.
In each of the next t lines there are string a (I<=a<=V*M), char c ('+', '', '*', ':' or '%') and string b (I<=b<=V*M).
Output
For each test, print sum if c='+', difference if c='', product if c='*', quotient if c=':', remainder if c='%' or ERROR if the result equals 0. If the result is negative print '' in front of it. The result will be integer.
Example
Input:
6
II + III
II  III
II * III
VI : III
V % III
I  I
Output:
V
I
VI
II
II
ERROR
Added by:  Piotr Ką kol 
Date:  20091223 
Time limit:  2.484s 
Source limit:  50000B 
Memory limit:  1536MB 
Cluster:  Cube (Intel G860) 
Languages:  All except: NODEJS OBJC SCM qobi VB.NET 
Resource:  Roman numerals 
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20110208 19:04:50 Piotr KÄ…kol
9000. 

20110207 04:08:12 Hallvard Norheim Bø
What is the upper limit on the output string length? 

20100901 09:18:44 Piotr Fusik
Thank you. 

20100831 19:45:06 Piotr KÄ…kol
For example: MCDLXXIV % LVII
:) 

20100831 19:10:07 Piotr Fusik
Okay, that was Perl 5.12 vs 5.10 incompatibility. How about 3984519 ? 

20100830 16:53:29 Piotr KÄ…kol
Always, unfortunately. It always print ERROR. Here are real errors from Your program: Number found where operator expected at (eval 1) line 1, near "0 0" (Missing operator before 0?) Number found where operator expected at (eval 2) line 1, near "00 00" (Missing operator before 00?) Number found where operator expected at (eval 3) line 1, near "000 000" (Missing operator before 000?) Number found where operator expected at (eval 4) line 1, near "0000 0000" (Missing operator before 0000?) etc. Weird that You got WA, not NZEC or SIGSEGV. Last edit: 20100830 16:54:23 

20100830 14:44:18 Piotr Fusik
When does my solution 3979876 give wrong answer? 

20100219 22:35:31 Piotr KÄ…kol
There are only letters: I,V,X,L,C,D,M. Then you print as many M's as you need. So for example M*M is 1000*1000 so 1000 of M's and MMMM + MMMM is MMMMMMMM. Good luck. ;) Last edit: 20100219 22:37:10 

20100219 14:50:05 Alessandro Ferreira  UFMS
How values greater than 3999 are represented in input? 