#include <iostream>
#include < cmath>
using namespace std;
int main() {
int a = 0 ;
int b = 0 ;
int c = 0 ;
int x = 1 ;
int y = 0 ;
cin >> a
cin >> b
cin >> c
while (x <= 10 ) {
y= (a * pow(x,2) -( b * x) + c );
x = x + 1 ;
}
cout << y << endl ;
}
return 0;
}
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