#include<bits/stdc++.h>
using namespace std;
int main(){
	int n,x,y;
	float p;
	cin>>n;
	n=n;
	x=n+8;
	y=x-2;
	p=(n+x+y)/3.0;
	printf("%d\n",n);
	printf("%d\n",x);
	printf("%d\n",y);
	printf("%.1f",p);
	return 0;
}
/**************************************************************
	Problem: 1612
	User: xiaojingxuan
	Language: C++
	Result: Accepted
	Time:7 ms
	Memory:2072 kb
****************************************************************/