#include<bits/stdc++.h>
using namespace std;
int main(){
	float n,y,b,p;
	cin>>n;
	y=n+8;
	b=y-2;
	p=(n+y+b)/3;
	cout<<n<<endl<<y<<endl<<b<<endl<<p;
	return 0;
}

/**************************************************************
	Problem: 1612
	User: HCW
	Language: C++
	Result: Wrong Answer
****************************************************************/