ONEZERO  Ones and zeros
Certain positive integers have their decimal representation consisting only of ones and zeros, and having at least one digit one, e.g. 101. If a positive integer does not have such a property, one can try to multiply it by some positive integer to find out whether the product has this property.
Input
Number K of test cases (K is approximately 1000);
in each of the next K lines there is one integer n (1 <= n <= 20000)
Output
For each test case, your program should compute the smallest multiple of the number n consisting only of digits 1 and 0 (beginning with 1).
Example
Input: 3 17 11011 17 Output: 11101 11011 11101
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ginnipkj:
20130317 10:13:02
don't use strings.... 

abdelkarim:
20130228 21:41:06
i think test case when n = 1 not in input file . 

praveen123:
20130117 21:24:58
@strings: use strings , I got accepted with strings. 

strings:
20121219 10:39:38
@thefourtheye you didn't get my point. ! can precompute the values no doubt about that... but for those whose values lie outside long long?? 396,594,999,9999 etc are just xamples of some of those values... please tell what to do... strings?? precomputation?? 

thefourtheye:
20121216 12:57:36
@C****** 396 => 11111111111111111100 

strings:
20121209 19:57:36
there are 235 test cases like 396,999,9999 etc which have reqd ans outside the limits of long long, so how to deal wid them??


rishabh jain:
20120716 07:32:10
can anyone plz tell me d o/p for 999...i think it exceeds d range of long long..:( 

Aman Kumar:
20120212 18:52:55
thanx Marwan.....same thing happened wid me...:) 

Crazzyy:
20111120 05:50:53
very nice problem...enjoyed doing it :) 

Anand Mohan Tiwari:
20111109 16:34:30
clock nudging neurons

Added by:  PaweÅ‚ Dobrzycki 
Date:  20050526 
Time limit:  8s 
Source limit:  4096B 
Memory limit:  1536MB 
Cluster:  Cube (Intel G860) 
Languages:  All except: NODEJS PERL6 VB.NET 
Resource:  II Polish Olympiad in Informatics, Ist Stage 