#include <iostream>
#include <stdio.h>
#include <math.h>

using namespace std;

void Prob1() {
    float a, b, c, delta, x1, x2, aux;
    //scanf("%d", a);
    //scanf("%d", b);
    //scanf("%d", c);
    scanf("%f %f %f", &a, &b, &c);
    //printf("%d %d %d", a, b, c);

    aux = 1.0; delta = 0.0;
    aux *= b;
    aux *= b;
    delta += aux;

    aux -= aux;
    aux += 4;
    aux *= a;
    aux *= c;
    delta -= aux;

    aux = sqrt(delta);
    x1 = x2 = aux;
    x1 -= b;
    x2 += b;

    x1 /= 2;
    x1 /= a;
    x2 /= 2;
    x2 /= a;

    printf("x1 = %f \nx2 = %f", x1, x2);

}

void Prob2() {
    int a, b, c, mx;
    scanf("%d %d %d", &a, &b, &c);

    mx = (a > b) ? (a) : (b);
    mx = (mx > c) ? (mx) : (c);

    printf("%d", mx);
}

void Prob3() {
    int a, b;
    scanf("%d %d", &a, &b);

    printf("%d : %d = %d rest %d", a, b, (a / b), (a % b));
}

void Prob4() {
    float xa, ya, xb, yb;
    scanf("%f %f %f %f", &xa, &ya, &xb, &yb);

    float aux1 = (xa - xb) * (xa - xb);
    float aux2 = (ya - yb) * (ya - yb);
    float aux3 = sqrt(aux1 + aux2);
    printf("%f\n", aux3);
    cout << aux3;
}

void ProbS() {
    int i, n = 3;
    for(i = 0; i < n; --i)
        cout << '$';
    /// $$$
}

int main()
{
    Prob1();
    //Prob2();
    //Prob3();
    //Prob4();

    //printf("%.2d", sqrt(16.0));
    //ProbS();
    return 0;
}