package Week08;

import java.util.ArrayList;

import java.util.Arrays;

import java.util.List;

import java.util.Scanner;

import java.util.stream.Collectors;

public class Interview_Solution {

public interface IEquation{

double[] convertInput(String[] inputs);

String calculate(double[] inputs);

}

public static class QuadatraticEquation implements IEquation{

public double[] convertInput(String[] inputs) throws IllegalArgumentException{

double[] res = new double[3];

if (inputs.length == 3){

try{

res[0] = Double.valueOf(inputs[0]);

res[1] = Double.valueOf(inputs[1]);

res[02] = Double.valueOf(inputs[2]);

if (res[0] == 0){

throw new IllegalArgumentException("a cannot ba 0;");

}

}catch (Exception e){

throw new IllegalArgumentException("Input must be three doubles and separated by spaces.");

}

}

else {

throw new IllegalArgumentException("Input must be three doubles and separated by spaces.");

}

return res;

}

public String calculate(double[] inputs){

String res = "";

double a = inputs[0];

double b = inputs[1];

double c = inputs[2];

double sqrt =0;

double part2 = b*b - 4*a*c;

if (part2 >= 0){

if (part2==0) sqrt =0;

else {

sqrt = Math.sqrt(part2);

}

double res1 = (b*-1 + sqrt)/2*a;

double res2 = (b*-1 - sqrt)/2*a;

return String.valueOf(res1) +" " + String.valueOf(res2);

}

else {

sqrt = Math.sqrt((part2*-1));

double p1 = (b*-1)/(2*a);

double p2 = (sqrt)/(2*a);

String s1 = String.valueOf(p1)+"+"

+String.valueOf(p2) +"i";

String s2 = String.valueOf(p1)+"-"

+String.valueOf(p2) +"i";

return s1 +" " + s2;

}

}

}

public static void main(String[] args) {

Scanner sc=new Scanner(System.in);

String input = sc.nextLine();

System.out.println(input);

String[] inputVals = input.split(" ");

IEquation equation = new QuadatraticEquation();

double[] params = equation.convertInput(inputVals);

String results = equation.calculate(params);

System.out.println(results);

}

}