public class Ruutvorrand1 {

  // Klass TextIO.class   D.Eck'i 6pikust peab olema jooksvas kataloogis!

   public static void main (String[] param) {

     // andmete sisestus
     double a = Double.parseDouble (param[0]);
     double b = Double.parseDouble (param[1]);
     double c = Double.parseDouble (param[2]);

     // tulemuse leidmine
      if (Math.abs (a) < 0.000000000001)  // a == 0.
         throw new RuntimeException ("\nTegemist pole ruutv6rrandiga, a==0.");
      double d = b*b - 4.*a*c;
      if (d < 0.)
         throw new RuntimeException ("\nReaallahendid puuduvad!");
      double x1 = (-b + Math.sqrt (d)) / (2.*a);
      double x2 = (-b - Math.sqrt (d)) / (2.*a);

     // tulemuste v2ljastamine
      TextIO.putln ("x1 = " + x1);
      TextIO.putln ("x2 = " + x2);
         
   } // main

} // Ruutvorrand1