#include <iostream>
#include <cmath>
using namespace std;
 
int main() {
	long double x, y, z;
	cin>>x>>y>>z;
	long double a, b;
	long double e;
    a = x*atan(y) - pow(M_E,(1-z));
	b =(sqrt(abs(3-x*x))-pow(abs(y-x),1.0/3))/(1-x*x/2 + y*y/4 - z*z/8);
	cout<<a<<endl;
	cout<<b<<endl;
	return 0;
}