#include<bits/stdc++.h> using namespace std; int main(){ int t; cin>>t; while(t--){ int a,b,c; cin>>a>>b>>c; int ans=-1; for(int x=1000;x<=9999;x++){ if(x%a==0 && (x+1)%b==0 && (x+2)%c==0){ ans=x; break; } } if(ans!=-1){ cout<<ans<<endl; }else{ cout<<"Impossible"<<endl; } } return 0; }