- #include <iostream> 
- #include <string> 
- #include <iterator> 
- #include <sstream> 
-   
- using namespace std; 
-   
- int main() { 
- 	string sentence; 
-     getline(cin, sentence); 
-     stringstream ss(sentence); 
-     int i = 0; 
-     for (auto word = istream_iterator<string>(ss) ; word != istream_iterator<string>() ; word++) { 
-     	cout << ++i << " " << *word << endl; 
-     } 
- 	return 0; 
- } 
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