Alen

1. include<iostream>
   
2. using namespace std;
   
3. int main(void){
   
4. 
   
5.     int x = 0;
   
6.    
   
7.     while (cin >> x){
   
8.           cout << x * x - x + 2 << endl;
   
9.     }
   
10. 
    
11. 
    
12. //system("pause");
    
13. return 0;
    
14. }

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