import java.util.Scanner;
public class Main
{
public static void main(String[] args)
{
Scanner input = new Scanner(System.in);
double a=0,b=0,c=0;
a = input.nextInt();
b = input.nextInt();
c = input.nextInt();
double D =Math.pow(b,2)-4*a*c;
double modan1 = 0;
double modan2 = 0;
double an1 = 0;
double an2 = 0;
if(D<0)
{
System.out.print("complex");
}
else
{
an1 = (-b+Math.pow(Math.pow(b,2)-4*a*c,0.5))/(2*a);
an2 = (-b-Math.pow(Math.pow(b,2)-4*a*c,0.5))/(2*a);
modan1 = Math.floor(10*an1)/10;
modan2 = Math.floor(10*an2)/10;
}
if(a>0)
{
System.out.print(modan1);
}
else
{
System.out.print(modan2);
}
}
}
a<0일때 고려했는데도 안되네요. 뭐가 문제인지 알려주시면 감사하겠습니다.!
