#include <iostream>
#include <vector>
#include <string>
#include <algorithm>
#include <cstdio>
#include <cstring>
#include <cmath>
using namespace std;
using ll = long long;

int main() {
    double a, b, c;
    cin >> a >> b >> c;

    b /= a;
    c /= a;
    b /= -2;

    double d = b * b - c;
    if (abs(d) < 1e-9) {
        printf("%.15f\n", b);
    } else if (d < 0) {
        printf("imaginary\n");
    } else {
        d = sqrt(d);
        printf("%.15f %.15f\n", b - d, b + d);
    }

    return 0;
}