#include <iostream>
#include <cmath>
#include <conio.h>
#include <stdio.h>

using namespace std;

int main()
{
          int A, B, C;
        int k = 0;
        double X1 = 0, X2 = 0;
        cin >> A >> B >> C;
        double D;
        D = B * B - 4 * A * C;
        if (D < 0) {
            k = 0;
        }
        if (D >= 0){
            k = 2;
            X1 = (-B + pow(D, 0.5)) / (2 * A);
            X2 = (-B - pow(D, 0.5)) / (2 * A);
        }
        cout << k << endl;
        printf("%0.6f", X1);
        cout << endl;
        printf("%0.6f", X2);
           //system("pause");
}
