#include <bits/stdc++.h>
using namespace std;
int main(){
	int N;cin >> N;
	if( N == 1 )		cout << 7 << endl;
	else if( N == 2 )	cout << 8 << endl;
	else if( N == 3 )	cout << 9 << endl;
	else if( N == 4 )	cout << 4 << endl;
	else if( N == 5 )	cout << 5 << endl;
	else if( N == 6 )	cout << 6 << endl;
	else if( N == 7 )	cout << 1 << endl;
	else if( N == 8 )	cout << 2 << endl;
	else if( N == 9 )	cout << 3 << endl;
	else if( N == 10 )	cout << 0 << endl;
}