#include<bits/stdc++.h> #define rep(i,a,b) for(int i=int(a);i<int(b);++i) using namespace std; typedef long long ll; int INF = (1LL << 30) - 1; int MOD = 1e9+7; main(){ int N; cin >> N; string str = "285714"; cout << str[(N-1) % 6] << endl; }