1562 Guess the number

Problem Description

Happy new year to everybody!
Now, I want you to guess a minimum number x betwwn 1000 and 9999 to let 
(1) x % a = 0;
(2) (x+1) % b = 0;
(3) (x+2) % c = 0;
and a, b, c are integers between 1 and 100.
Given a,b,c, tell me what is the number of x ?

 

Input

The number of test cases c is in the first line of input, then c test cases followed.every test contains three integers a, b, c.

 

Output

For each test case your program should output one line with the minimal number x, you should remember that x is between 1000 and 9999. If there is no answer for x, output "Impossible".

 

Sample Input

2

44 38 49

25 56 3

 

Sample Output

Impossible

 

2575

 

#include <iostream>
#include <stdio.h>
#include <string.h>
using namespace std;

int main()
{
     int a,b,c,n,k,j;
     while(cin>>n)
     {
         for(int i=1;i<=n;i++)
         {
             cin>>a>>b>>c;
             k=0;
             for(j=(1000/a)*a;j<10000;j=j+a)
             {
                 if((j+1)%b==0&&(j+2)%c==0)
                 {
                     k=1;
                     break;
                 }
             }
             if(k==1)
             cout<<j<<endl;
             else
             cout<<"Impossible"<<endl;
         }
     }
     return 0;

}