#include<iostream>
#include<cmath>
using namespace std;

void one(){
	double y,x;
	cin>>x;
	y=7*x*x+3*x-6;
	cout<<y<<endl;
}

void two(){
	double x1,y1,x2,y2,x3,y3;
	double p,s,pp;
	double s1,s2,s3;
	s1=(x2-x1)*(x2-x1)+(y2-y1)*(y2-y1);
	s2=(x3-x2)*(x3-x2)+(y3-y2)*(y3-y2);
	s3=(x3-x1)*(x3-x1)+(y3-y1)*(y3-y1);
	p=s1+s2+s3;
	pp=p/2;
	s=sqrt(pp*(pp-s3)*(pp-s2)(pp-s1));
	cout<<p<<' '<<s<<endl;
}

void three(){
	double a;
	double a_8,a_10,a_16;
	cin>>a;
	a_8=a*a;
	a_8*=a_8;
	a_8*=a_8;
	a_10=a*a;
	a_10*=a_10;
	a_10*=a;
	a_10*=a_10;
	a_16=a*a;
	a_16*=a_16;
	a_16*=a_16;
	a_16*=a_16;
	cout<<a_8<<' '<<a_10<<' '<<a_16<<endl;
}

void four(){
	double a;
	double a_21;
	cin>>a;
	a_21=a*a;
	a_21*=a_21;
	a_21*=a;
	a_21*=a_21;
	a_21*=a_21;
	a_21*=a;
	cout<<a_21<<endl;
}

void five(){
	double C,K;
	cin>>C;
	K=C+273.15;
	cout<<K<<endl;
}

int main(){
one();
two();
three();
four();
five();
return 0;
}