#include<iostream>
using namespace std;
int main(){
	int n,i;
	cin>>n;
	for(i=1;i<=6;i++){
		n=(n+2)*2;
	}
	cout<<n;
}
/**************************************************************
	Problem: 1688
	User: admin
	Language: C++
	Result: Accepted
	Time:4 ms
	Memory:2072 kb
****************************************************************/