#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<<"Impossible"<<endl; } else{ cout<<ans<<endl; } } return 0; }