#include <bits/stdc++.h>
using namespace std;
int main(){
	int n;
	cin>>n;
	for(int i=1;i<=6;i++){
		n=(n+2)*2; 
	}
	cout<<n;
}
/**************************************************************
	Problem: 1688
	User: panyuchen
	Language: C++
	Result: Accepted
	Time:5 ms
	Memory:2072 kb
****************************************************************/