import java.util.*;

class triangle {

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        double a = in.nextDouble();
        double b = in.nextDouble();
        double c = in.nextDouble();
            double p = (a + b + c) / 2;
            double S = Math.sqrt(p * (p - a) * (p - b) * (p - c)); //формула Герона
            double r = S / p;
            double R = a * b * c / (4 * S);
            System.out.println("Радиус вписанной окружности равен " + r);
            System.out.println("Радиус вписанной окружности равен " + R);
    }
}