handling stringstream errors with try/catch

How can I handle the following exception without using if/else ( only using try/catch):-

string S;
cin >> S;
stringstream ss(S);
int n;         
try {
   ss>>n;
   if(ss.fail()) throw (exception())
   else cout<<n;
} 
catch (const exception& e) { cout << "Bad String"<<endl;}