HDU 1562 Guess the number

#pragma comment(linker, "/STACK:1024000000,1024000000")
#include<cstdio>
#include<cstring>
#include<cmath>
#include<algorithm>
#include<vector>
#include<map>
#include<set>
#include<queue>
#include<stack>
#include<iostream>
using namespace std;
typedef long long LL;
const double pi=acos(-1.0),eps=1e-8;
void File()
{
    freopen("D:\\in.txt","r",stdin);
    freopen("D:\\out.txt","w",stdout);
}
inline int read()
{
    char c = getchar();  while(!isdigit(c)) c = getchar();
    int x = 0;
    while(isdigit(c)) { x = x * 10 + c - ‘0‘; c = getchar(); }
    return x;
}

int T;

int main()
{
    scanf("%d",&T);
    while(T--)
    {
        int a,b,c; scanf("%d%d%d",&a,&b,&c);
        int ans=-1;
        for(int i=1000;i<=9999;i++)
        {
            if(i%a==0&&(i+1)%b==0&&(i+2)%c==0)
            {
                ans=i;break;
            }
        }
        if(ans==-1) printf("Impossible\n");
        else printf("%d\n",ans);

    }
    return 0;
}