#include<iostream> #include<iomanip> using namespace std; int main(){ int a,b,c; cin>>a>>b>>c; for(int i=1000;i<=9999;i++){ if(i%a==0){ if((i+1)%b==0){ if((i+2)%c==0){ cout<<i; }else{ cout<<"Impossible";break; } }else{ cout<<"Impossible";break; } }else{ cout<<"Impossible";break; } } }