#include <bits/stdc++.h>
using namespace std;
int main()
{
    double a, b, c, delta, x1, x2;
    cin >> a >> b >> c;
    delta = b * b - 4 * a * c;
    if(delta>=0)
    {
        x1 = (-b + sqrt(delta)) / (2 * a);
        x2 = (-b - sqrt(delta)) / (2 * a);
        if (x1 > x2)
            swap(x1, x2);
        if (delta == 0)
            cout << fixed << setprecision(5) << "x1=x2=" << x1;
        else if(delta > 0) 
            cout << fixed << setprecision(5) << "x1=" << x1 << ";x2=" << x2;
    }
    else 
        cout << "No answer!";
    
    return 0;
}