#include<bits/stdc++.h>
using namespace std;
int main(){
	int n,c=1,b;
	cin>>n;
	if(n==1){
		cout<<"2";
		return 0;
	}
	if(n==2){
		cout<<"4";
		return 0;
	}
	for(int i=1;i<=n;i++){
		c=c*2;
	}
	b=(n-1)*(n-2)/2;
	if(c>=55555){
		c=c%55555-b;
	}else{
		c=c-b;
	}
	cout<<c;
}
/**************************************************************
	Problem: 1689
	User: panyuchen
	Language: C++
	Result: Wrong Answer
****************************************************************/