#include<iostream> using namespace std; int main(){ int x,a,b,c,C; cin>>C; for(int i=1;i<=C;i++){ cin>>a>>b>>c; if(x%a==0&&(x+1)%b==0&&(x+2)%c==0) cout<<x<<endl; else{ cout<<"Impossible"<<endl; } }return 0; }