#include <bits/stdc++.h>
using namespace std;
void solve() {
  int n;
  cin >> n;
  cout << n % 2 << '\n';
}
signed main() {
  ios::sync_with_stdio(false);
  cin.tie(0);
  cout.tie(0);
  int t = 1;
  while (t--) {
    solve();
  }
  return 0;
}
