#include <bits/stdc++.h>
using namespace std;
int main() {
    int n;
    cin>>n;
    int y=n+8;
    int b=y-2;
    float p=(b+y+n)/3;
	printf("%d\n%d\n%d\n%.1f",n,y,b,p+0.7);
    return 0;
}
/**************************************************************
	Problem: 1612
	User: fuhoubin
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2072 kb
****************************************************************/