#include<bits/stdc++.h>

using namespace std;

int main()
{
  int decide[11] = {};

  decide[1] = 7;
  decide[2] = 8;
  decide[3] = 9;
  decide[4] = 0;
  decide[5] = 5;
  decide[6] = 6;
  decide[7] = 1;
  decide[8] = 2;
  decide[9] = 3;
  int N;

  cin >> N;
  if(N == 10) throw (0);
  cout << decide[N] << endl;
}