#include<bits/stdc++.h>
using namespace std;
int main()
{
	int n,a,b;
	double c;
	cin>>n;
	a=n+8;
	b=a-2;
	c=(n+a+b)/3.0;
	cout<<n<<endl<<a<<endl<<b<<endl;
	printf("%.1f",c);
}

/**************************************************************
	Problem: 1612
	User: zhuangsongyu
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2072 kb
****************************************************************/