import java.util.Scanner;

public class Abc3
{
   public static void main(String[] args)
   {
      double a, b, c, Det, re, im;  
 
      Scanner in = new Scanner(System.in); // Construct Scanner object    

      System.out.print("Enter a:");
      a = in.nextDouble();  // Read in next number into a
      System.out.print("Enter b:");
      b = in.nextDouble();  // Read in next number into b
      System.out.print("Enter c:");
      c = in.nextDouble();  // Read in next number into c

      Det = b*b - 4*a*c;

      if ( Det >= 0 )
      {
         System.out.println( (-b + Math.sqrt( Det ) ) / (2*a) );
         System.out.println( (-b - Math.sqrt( Det ) ) / (2*a) );
      }

      if ( Det < 0 )
      {
         re = -b/(2*a);                 // Compute real part
         im = Math.sqrt( -Det )/(2*a);  // Compute imaginary part

         System.out.println( re + "+" + im + "i" );
         System.out.println( re + "-" + im + "i" );
      }
   }
}