#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; } } }