#include <iostream>
#include <cmath>
using namespace std;
float modul = 0.00, f = 0.00, s=0.00;
float q=0.00,x=0.00,y=0.00,a=2.00,b=2.00;
float functie(int x,int y)
{
	if ((abs(x)<=8) && (abs(y) <= 8))
	{
		s = x * x + y * y;
		q= sqrt(s);
		cout << sin(q)<<endl;
		f = a * b*q*sin(q);
		cout << f<<endl;
	}
	else f =0;
	return f;
}
int main()
{
	cin >> x >> y;
	f = functie(x,y);
	cout << f;
	system("pause");
	return 0;
}