#include<bits/stdc++.h>
using namespace std;

const long long INF = 1LL << 60;
#define MOD 1000000007;

typedef long long ll;

#define writeln(n) cout<<n<<endl;

typedef pair<float, float> P;

typedef pair<string, int> Psi;

int d[15];
int main() {

	string s ="285714";

	int n;
	cin>>n;

	int index =0;
	if(n %6 ==0){
		index =5;
	}else {
		index = n%6;
		index--;
	}



	writeln(s[index]);
}